Internal mixer for producing thermoplastic elastomer

Abstract

The invention relates to the technical field of plastic material forming and processing, in particular to an internal mixer for producing thermoplastic elastomers, which comprises a main body, a processing part, a movable weight part, a feeding module, a linkage part, an auxiliary discharging part, a control host and a conveying part, the main body comprises a supporting seat, and the upper side of the supporting seat is fixedly connected with a box shell; an internal mixing chamber is formed in the inner side of the box shell, the upper side of the internal mixing chamber communicates with a through opening, rail frames are fixedly connected to the front side and the rear side of the lower end face of the box shell correspondingly, rail blocks are slidably connected to the inner sides of the rail frames correspondingly, and a discharging plate located on the inner side of a discharging opening of the box shell is fixedly connected to the upper sides of one set of rail blocks. Through the main body, the movable ram part, the feeding module, the linkage part and other structures, when the internal mixer is used for producing thermoplastic elastomers, various raw materials can be quickly and efficiently added at regular time under the condition that the ram is not completely lifted up through limited separation design of the ram, and the raw materials in the internal mixing chamber are prevented from being splashed out during feeding.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic material forming and processing, and specifically to a mixer for producing thermoplastic elastomers. Background Art

[0002] A mixer is a device used for plasticating and mixing polymer materials. It can intermittently process materials in a closed state with adjustable temperature and pressure. Thermoplastic elastomers are a type of elastomer that has rubber elasticity at room temperature and can be plastically formed at high temperatures. During the processing of thermoplastic elastomers, their raw materials first need to be pre-processed by a mixer and are transformed into thermoplastic elastomers suitable for subsequent forming processes through melting, mixing, and plasticization.

[0003] When a mixer processes thermoplastic elastomers, there are many types of raw materials for thermoplastic elastomers, including rubber substrates, fillers, additives, and other additives. The common feeding method is to first add the rubber substrate into the mixer, and then lower the pressure weight into the feeding port. On the one hand, it can control the material flow and improve the mixing efficiency, and on the other hand, it can prevent material splashing. Then, the remaining raw materials are added batch by batch at regular intervals in sequence for mixing and kneading to obtain the finished product. The above feeding operations generally require workers to stay beside and add materials manually at regular intervals, and each time of adding materials requires completely lifting the pressure weight from the feeding port, which is inconvenient and affects the feeding efficiency, and there is also a safety risk caused by material splashing. Therefore, a mixer for producing thermoplastic elastomers is proposed according to the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a mixer for producing thermoplastic elastomers to solve the problems that when the existing mixer processes thermoplastic elastomers, there are many types of raw materials and workers need to add materials manually at regular intervals, and each time of adding materials requires completely lifting the pressure weight from the feeding port, which is inconvenient and affects the feeding efficiency, and there is also a safety risk caused by material splashing.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A kneader for producing thermoplastic elastomers, comprising a main body, a processing part, a movable pressing weight part, a feeding module, a linkage part, an auxiliary discharging part, a control mainframe and a material conveying part. The main body includes a support base, and the upper side of the support base is fixedly connected with a box shell. The inner side of the box shell is provided with a kneading chamber. The upper side of the kneading chamber is communicated with a through port. Both the front and rear sides of the lower end surface of the box shell are fixedly connected with track frames. The inner sides of the track frames are all slidably connected with track blocks. The upper sides of a group of the track blocks are fixedly connected with a discharge plate inside the discharge port of the box shell. The upper end surface of the box shell is fixedly connected with a folding plate at the rear side of the through port. A hydraulic rod is fixedly connected inside the transverse plate opening of the folding plate. The processing part includes a gear box fixed at the rear side of the box shell. A motor is installed at the rear side of the gear box. Both of the front side driven shafts of the gear box are fixedly connected with rotors inside the kneading chamber. The movable pressing weight part includes an outer pressing shell inside the through port. A feeding port is opened at the lower side of the outer pressing shell. The inner side of the outer pressing shell is fixedly connected with limiting guide bars. A linkage rod fixedly connected with the lower end of the hydraulic rod is slidably connected inside the hole positions of the limiting guide bars. The lower end of the linkage rod is fixedly connected with an inner pressing block inside the feeding port. The feeding module is installed on the upper side of the box shell. The control mainframe is installed on the right side of the box shell.

[0007] Preferably, the feeding module includes a guiding material frame sleeved on the outer side of the through port and fixedly connected with the box shell. Hole plates are fixedly connected to both the left and right sides of the guiding material frame. Timing communication parts are installed inside the hole positions of the hole plates. The timing communication parts include a pipe shell on the upper side of the box shell. Through holes with different heights are opened on both the left and right sides of the pipe shell. An electric push rod is fixedly connected to the upper side of the pipe shell. The lower end of the driving rod of the electric push rod is fixedly connected with an inclined through column inside the pipe shell. A connecting pipe is fixedly connected inside the upper through hole. A hopper seat is communicated with the upper side of the connecting pipe. A connecting sleeve fixedly connected with the hopper seat is sleeved on the outer side of the pipe shell. A batching cup is installed on the upper side of the hopper seat.

[0008] Preferably, the motor is fixedly connected with the gear box, and the output shaft of the motor is fixedly connected with the rear side main shaft of the gear box. Heating plates are installed on both sides inside the box shell, and the heating plates are all arranged on both sides of the kneading chamber. The control mainframe is electrically connected to the motor, the hydraulic rod, the electric push rod and the heating plates. A touch screen is arranged on the front side of the control mainframe.

[0009] Preferably, support bars are arranged on both inner sides of the through port. Support grooves are opened on both lower sides of the outer pressing shell. The outer pressing shell is arranged on the upper side of the support bars of the through port. A distance is arranged between the inner pressing block and the limiting guide bars. The bottom surfaces of both inner sides of the outer pressing shell are arranged as inclined surfaces. The upper sides of both parts of the inner pressing block are arranged as inclined surfaces.

[0010] Preferably, the through holes are all arranged on the upper side of the hole plate and the material guiding frame, the lower through holes are all arranged close to the material guiding frame, an inclined channel is arranged inside the inclined through column, the inclined channel of the inclined through column is arranged on the lower side of the through hole, and the two through holes on both sides are higher than the two ends of the inclined through column at the same spacing dimension.

[0011] Preferably, the dosing cup is composed of a transparent cup body, a rotary knob, a tray and a scale bar. The edge of the tray of the dosing cup is rounded. The tray of the dosing cup is closely attached to the inner wall of the transparent cup body. The scale bar of the dosing cup is located on the upper side of the tray.

[0012] Preferably, the linkage part includes a set of two sleeve rods. The upper sleeve rod is sleeved on the outside of the linkage rod. A connecting rod whose upper end is fixedly connected to the discharge plate is fixedly connected to the inside of the lower sleeve rod. Rack teeth are fixedly connected to the front ends of the sleeve rods. A transmission gear whose rear end is rotatably connected to the box shell is meshed between the set of rack teeth. A limiting frame fixedly connected to the box shell is slidably connected to the outside of the set of rack teeth. Limiting blocks are fixedly connected to the ends of the rack teeth away from the sleeve rods. The auxiliary discharging part includes an air pump fixed to the right side of the box shell. A shunt pipe is communicated with the upper side of the air pump. Storage grooves are respectively arranged on both sides of the through port. The upper ends of both parts of the shunt pipe are communicated with the storage grooves. Rail shells are respectively slidably connected to the inside of the storage grooves. Air outlet openings are respectively arranged on the lower side surfaces of the rail shells. Tensile springs are respectively fixedly connected between the rail shells and the inner walls of the storage grooves. The material conveying part is installed on the upper side of the bottom plate of the support seat.

[0013] Preferably, the outer end surface of the discharge plate is attached to the inner wall of the discharge port of the box shell. A sealing ring is arranged at the upper edge of the discharge plate. The tooth parts of the left and right rack teeth are arranged vertically. The material conveying part is composed of a conveying pipe, a spiral conveyor, a motor and a hopper shell. The upper part of the hopper shell of the material conveying part is provided with a split port. The hopper shell of the material conveying part is arranged on the lower side of the discharge plate. The air pump is electrically connected to the control host.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the present invention, by providing the main body, movable pressure weight part, feeding module and linkage part and other structures, when a certain raw material reaches the unloading time, the timing connecting part corresponding to the raw material is connected, and at this time, the raw material in the hopper seat of the timing connecting part can move downward through the connecting pipe, pass through the channel composed of the left and right through holes and the inclined through column and fall into the inner inclined surface of the material guide frame, and the raw material is guided downward to be transported to the outer pressure shell by the guidance of the material guide frame. At the same time, the hydraulic rod will be controlled to shrink slightly, driving the inner pressure block to move upward slightly, so that the feeding port is opened. At this time, the raw material in the outer pressure shell can fall into the mixing chamber from the feeding port, and at the same time, the slight upward movement of the linkage rod will also drive the discharge plate to move downward slightly through the linkage part, so that the lower volume of the mixing chamber increases. Adding, the raw material level in the middle of the mixing chamber is lowered, so that the raw materials in the mixing chamber will not overflow or splash out through the feeding port when the feeding port is opened, thereby avoiding interference with the feeding operation and safety risks caused by splashing. When the mixer is producing thermoplastic elastomers, the limited separation design of the pressure weight allows the pressure weight to be quickly and efficiently added on a regular basis without being completely lifted, and avoids splashing of the raw materials inside the mixing chamber during feeding. This solves the problem that when the existing mixer is used to process thermoplastic elastomers, there are many types of raw materials and the staff needs to manually add them on a regular basis. Each time the material is added, the pressure weight needs to be completely lifted from the feeding port, which is inconvenient and affects the feeding efficiency, and there is a safety risk caused by material splashing;

[0016] 2. In the present invention, by providing the linkage part, the movable pressure weight part and the auxiliary discharge part and other structures, after the mixing process is completed, the hydraulic rod is controlled to be fully retracted, driving the linkage rod and the inner pressure block to move upward significantly, thereby driving the limit guide bar and the outer pressure shell to move upward significantly, so that the movable pressure weight part is separated from the through-port. At the same time, the significant upward movement of the linkage rod will drive the discharge plate to move downward significantly through the linkage part, so that it is separated from the discharge port of the box shell, so that the discharge port of the box shell is opened, and most of the thermoplastic elastomer in the mixing chamber falls and is discharged from the discharge port. At the same time, the air pump is controlled to start according to the program setting. , the receiving groove is inflated through the shunt pipe, and as the air pressure increases, the rail shell is pushed to move, so that the air outlet is opened. At this time, the air flow in the rail shell can rush into the mixing chamber through the air outlet, and the residual thermoplastic elastomer in the mixing chamber is discharged, so that the discharged thermoplastic elastomer falls into the hopper shell of the feeding part, and is transported to the next process for processing through the feeding part. After the internal mixer finishes producing the thermoplastic elastomer, it can automatically and comprehensively discharge the thermoplastic elastomer in the mixing chamber to avoid material residue in the mixing chamber and affect the next processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A rear view structural diagram of ;

[0019] Figure 3 is a schematic cross-sectional structure diagram of the present invention Figure 1 ;

[0020] Figure 4 is a schematic cross-sectional structure diagram of the main body of the present invention

[0021] Figure 5 is a schematic structure diagram of the processing part of the present invention

[0022] Figure 6 is a schematic structure diagram of the position where the movable weight part of the present invention is located

[0023] Figure 7 is a schematic structure diagram of the movable weight part of the present invention

[0024] Figure 8 is the present invention Figure 7 ; is a schematic cross-sectional and upward-looking structure diagram

[0025] Figure 9 is a schematic structure diagram of the feeding module of the present invention

[0026] Figure 10 is a schematic cross-sectional structure diagram of the timing connection part of the present invention

[0027] Figure 11 is a schematic cross-sectional structure diagram of the ingredient cup of the present invention

[0028] Figure 12 is a schematic structure diagram of the linkage part of the present invention

[0029] Figure 13 is a schematic upward-looking structure diagram of the auxiliary discharging part of the present invention

[0030] Figure 14 is a schematic structure diagram of the material conveying part of the present invention

[0031] Figure 15 is a schematic cross-sectional structure diagram of the present invention in the state of timing feeding

[0032] Figure 16 is a schematic structure diagram of the discharging state of the present invention

[0033] In the figure: 1. Main body; 101. Support base; 102. Case shell; 103. Kneading chamber; 104. Through port; 105. Storage groove; 106. Rail frame; 107. Rail block; 108. Discharge plate; 109. Heating plate; 110. Folding plate; 111. Hydraulic rod; 2. Processing part; 21. Gear box; 22. Rotor; 23. Motor; 3. Movable pressure weight part; 31. Outer pressure shell; 32. Feeding port; 33. Limit guide bar; 34. Linking rod; 35. Inner pressure block; 4. Feeding module; 41. Material guiding frame; 42. Hole position plate; 43. Timing connection part; 431. Pipe shell; 432. Through hole; 433. Electric push rod; 434. Inclined through column; 435. Connecting pipe; 436. Hopper seat; 437. Connecting sleeve; 44. Batching cup; 5. Linking part; 51. Driving gear; 52. Rack; 53. Limit block; 54. Sleeve rod; 55. Limit frame; 56. Link rod; 6. Auxiliary discharging part; 61. Air pump; 62. Shunt pipe; 63. Rail shell; 64. Tension spring; 65. Air outlet; 7. Control host; 8. Material conveying part. Detailed implementation mode

[0034] Please refer to Figure 1-16 , the present invention provides a technical solution:

[0035] An internal mixer for producing thermoplastic elastomers, comprising a main body 1, a processing part 2, a movable ram part 3, a feeding module 4, a linkage part 5, an auxiliary discharging part 6, a control host 7 and a material conveying part 8. The main body 1 includes a support base 101, and a box shell 102 is fixedly connected to the upper side of the support base 101. A mixing chamber 103 is arranged inside the box shell 102. A through port 104 is communicated with the upper side of the mixing chamber 103. Rail frames 106 are fixedly connected to both the front and rear sides of the lower end surface of the box shell 102. Rail blocks 107 are slidably connected inside the rail frames 106. A discharging plate 108 located inside the discharging port of the box shell 102 is fixedly connected to the upper side of a group of rail blocks 107. A folding plate 110 located behind the through port 104 is fixedly connected to the upper end surface of the box shell 102. A hydraulic rod 111 is fixedly connected inside the horizontal plate opening of the folding plate 110. The processing part 2 includes a gear box 21 fixed to the rear side of the box shell 102. A motor 23 is installed on the rear side of the gear box 21. Rotors 22 located inside the mixing chamber 103 are fixedly connected to the front side two secondary shafts of the gear box 21. The movable ram part 3 includes an outer ram shell 31 located inside the through port 104. A feeding port 32 is arranged on the lower side of the outer ram shell 31. Limiting guide bars 33 are fixedly connected inside the outer ram shell 31. A linkage rod 34 fixedly connected to the lower end of the hydraulic rod 111 is slidably connected inside the hole positions of the limiting guide bars 33. An inner ram block 35 located inside the feeding port 32 is fixedly connected to the lower end of the linkage rod 34. A feeding module 4 is installed on the upper side of the box shell 102. A control host 7 is installed on the right side of the box shell 102; The feeding module 4 includes a guide material frame 41 sleeved on the outside of the through port 104 and fixedly connected to the box shell 102. Hole position plates 42 are fixedly connected to both the left and right sides of the guide material frame 41. Timing communication parts 43 are installed inside the hole positions of the hole position plates 42. The timing communication part 43 includes a pipe shell 431 located on the upper side of the box shell 102. Through holes 432 with different heights are arranged on both the left and right sides of the pipe shell 431. An electric push rod 433 is fixedly connected to the upper side of the pipe shell 431. An inclined through column 434 located inside the pipe shell 431 is fixedly connected to the lower end of the driving rod of the electric push rod 433. A connecting pipe 435 is fixedly connected inside the upper through hole 432. A hopper seat 436 is communicated with the upper side of the connecting pipe 435. A connecting sleeve 437 fixedly connected to the hopper seat 436 is sleeved on the outside of the pipe shell 431. A batching cup 44 is installed on the upper side of the hopper seat 436. Through this setting, the feeding module 4 can automatically convey each raw material to the movable ram part 3 at regular intervals;The motor 23 is fixedly connected to the gearbox 21. The output shaft of the motor 23 is fixedly connected to the rear main shaft of the gearbox 21. Through this setting, the motor 23 can distribute power through the gearbox 21 and drive the two rotors 22 to rotate towards each other in the kneading chamber 103 at the same time. Heating plates 109 are installed on both sides inside the housing 102, and the heating plates 109 are arranged on both sides of the kneading chamber 103. Through this setting, the heating plates 109 can heat the raw materials in the kneading chamber 103. The control host 7 is electrically connected to the motor 23, the hydraulic rod 111, the electric push rod 433, and the heating plate 109. Through this setting, the control host 7 can control the operation of each electrical device. A touch screen is provided on the front side of the control host 7. Through this setting, the control host 7 can adjust each electric push rod 433 through the touch screen for timing control; Support bars are arranged on both sides inside the through port 104, and support grooves are opened on both lower sides of the outer pressure shell 31. The outer pressure shell 31 is arranged on the upper side of the support bars of the through port 104. Through this setting, the downward movement of the outer pressure shell 31 is restricted to prevent the outer pressure shell 31 from contacting the rotor 22. A gap is provided between the inner pressure block 35 and the limit guide bar 33. Through this setting, a small upward movement of the inner pressure block 35 will not drive the limit guide bar 33 to move upward. The bottom surfaces on both sides inside the outer pressure shell 31 are inclined surfaces. Through this setting, the raw materials entering the outer pressure shell 31 can be guided into the feeding port 32. The upper parts on both sides of the inner pressure block 35 are inclined surfaces. Through this setting, the raw materials entering the outer pressure shell 31 are prevented from falling on the upper side of the inner pressure block 35, and the raw materials falling on the upper side of the inner pressure block 35 will be guided down by the inclined surfaces; The through holes 432 are all arranged on the upper sides of the hole position plate 42 and the material guiding frame 41. The lower through holes 432 are all arranged close to the material guiding frame 41. An inclined channel is arranged inside the inclined through column 434, and the inclined channel of the inclined through column 434 is arranged on the lower side of the through hole 432. The two through holes 432 are higher than the two ends of the inclined through column 434 at the same spacing size. Through this setting, the upward moving inclined through column 434 will connect the two through holes 432; The dosing cup 44 is composed of a transparent cup body, a rotary knob, a tray, and a scale bar. The edge of the tray of the dosing cup 44 is rounded. Through this setting, the rotation of the tray is not interfered by the inner wall of the glass cup body. The tray of the dosing cup 44 is closely attached to the inner wall of the transparent cup body. Through this setting, the tray can carry the raw materials without leakage. The scale bar of the dosing cup 44 is located on the upper side of the tray. Through this setting, when adding raw materials, the scale bar of the dosing cup 44 can be referred to for auxiliary quantification.;

[0036] Such as Figure 1 、 Figure 3 、 Figures 12-14 、 Figure 16As shown, the linkage part 5 includes a set of two sleeve rods 54. The upper sleeve rod 54 is sleeved outside the linkage rod 34. A connecting rod 56 with its upper end fixedly connected to the discharge plate 108 is fixedly connected to the inner side of the lower sleeve rod 54. Rack bars 52 are fixedly connected to the front ends of the sleeve rods 54. A transmission gear 51 with its rear end rotatably connected to the box shell 102 is meshed and connected between the set of rack bars 52. A limiting frame 55 fixedly connected to the box shell 102 is slidably connected to the outside of the set of rack bars 52. Limiting blocks 53 are fixedly connected to one ends of the rack bars 52 far from the sleeve rods 54. The auxiliary discharge part 6 includes an air pump 61 fixed to the right side of the box shell 102. A shunt pipe 62 is communicated with the upper side of the air pump 61. Receiving grooves 105 are opened on both sides of the through port 104. Both upper ends of the shunt pipe 62 are communicated with the receiving grooves 105. Rail shells 63 are slidably connected to the inner sides of the receiving grooves 105. Air outlet openings 65 are opened on the lower side plate surfaces of the rail shells 63. Tensile springs 64 are fixedly connected between the rail shells 63 and the inner walls of the receiving grooves 105. The feeding part 8 is installed on the upper side of the bottom plate of the support seat 101. Through this setting, after the mixing and processing is completed, the hydraulic rod 111 is controlled to fully contract, driving the linkage rod 34 and the inner pressing block 35 to move upward significantly, and then driving the limiting guide bar 33 and the outer pressure shell 31 to move upward significantly, so that the movable pressing weight part 3 disengages from the through port 104. At the same time, the significant upward movement of the linkage rod 34 will drive the discharge plate 108 to move downward significantly through the linkage part 5, disengaging from the discharge port of the box shell 102, opening the discharge port of the box shell 102, enabling most of the thermoplastic elastomer in the mixing chamber 103 to fall and discharge from the discharge port. At the same time, according to the program setting, the air pump 61 is controlled to start, and the receiving grooves 105 are inflated through the shunt pipe 62. As the air pressure increases, the rail shell 63 is pushed to displace, opening the air outlet opening 65. At this time, the air flow in the rail shell 63 can rush into the mixing chamber 103 through the air outlet opening 65 to discharge the remaining thermoplastic elastomer in the mixing chamber 103, enabling the discharged thermoplastic elastomer to fall into the hopper shell of the feeding part 8, and the feeding part 8 conveys it to the next process for processing; the outer end surface of the discharge plate 108 is attached to the inner wall of the discharge port of the box shell 102, and a sealing ring is arranged at the upper edge of the discharge plate 108. Through this setting, it is avoided that the raw materials in the mixing chamber 103 leak from the discharge port of the box shell 102 through the gaps. The tooth parts of the left and right rack bars 52 are arranged in an up-and-down distribution. The feeding part 8 is composed of a conveying pipe, a screw conveyor, a motor and a hopper shell. Through this setting, the feeding part 8 can convey the thermoplastic elastomer to the next process for processing. The upper part of the hopper shell of the feeding part 8 is provided with a split opening. The hopper shell of the feeding part 8 is arranged under the discharge plate 108. Through this setting, the hopper shell can receive the thermoplastic elastomer falling from the discharge plate 108 to the greatest extent. The air pump 61 is electrically connected to the control host 7. Through this setting, the control host 7 can control the operation of the air pump 61.

[0037] Workflow: The operation of producing thermoplastic elastomer by the internal mixer is as follows. Feeding preparation operation: First, remove each batching cup 44 from the hopper seat 436, and then place each raw material into each batching cup 44 according to the weight ratio, so that the batching is on the upper side of the tray of the batching cup 44. When adding, the scale bar of the batching cup 44 can be referred to for auxiliary quantification. After the batching is completed, reset each batching cup 44 to each hopper seat 436, and then rotate the tray by turning the knob of each batching cup 44 to make the raw materials on the tray fall into the hopper seat 436. Then, according to the feeding sequence and feeding time of each raw material, the electric push rod 433 of each timing communication part 43 is controlled by the main machine 7 at a fixed time, and at the same time, the hydraulic rod 111 is controlled in a linkage manner. The feeding preparation operation is completed through the above steps; Timed feeding operation. Note 1: The motor 23 of the processing part 2 can be started by controlling the main machine 7. The motor 23 drives the two rotors 22 to rotate towards each other in the internal mixer chamber 103 through the power distribution of the gearbox 21 to mix the added raw materials; Note 2: The heating plate 109 can be controlled by the main machine 7 to heat the raw materials in the internal mixer chamber 103 to an appropriate temperature; Note 3: Before the timed automatic feeding, first manually control the hydraulic rod 111 to contract slightly, drive the inner pressure block 35 to move up slightly, open the feeding port 32, place the rubber base material with a high proportion in the formula into the internal mixer chamber 103 through the feeding port 32, and then control the inner pressure block 35 to reset to seal the feeding port 32.When the unloading time of a certain raw material is reached, the electric push rod 433 of the timing connecting part 43 corresponding to the raw material will be controlled to retract, thereby driving the inclined through column 434 linked thereto to move upward, so that the inclined through column 434 after moving upward is connected with the through holes 432 on both sides. At this time, the raw material in the hopper seat 436 of the timing connecting part 43 can move downward through the connecting pipe 435, pass through the channel composed of the left and right through holes 432 and the inclined through column 434, and fall into the inner inclined surface of the material guide frame 41. The raw material is guided downward by the guide frame 41 and transported to the outer pressure shell 31 of the movable pressure weight part 3. At the same time, the hydraulic rod 111 will be The linkage control is slightly contracted, and the action of the hydraulic rod 111 drives the linkage rod 34 and the inner pressure block 35 to move up slightly (the inner pressure block 35 can be in contact with the limit guide bar 33), so that the feeding port 32 is opened. At this time, the raw materials in the outer pressure shell 31 can fall into the mixing chamber 103 from the feeding port 32 through the inclined surface guide. At the same time, the slight upward movement of the linkage rod 34 will also drive the right rack 52 to move up through the upper sleeve rod 54. Since the left and right racks 52 are meshed with the transmission gear 51, the upward movement of the right rack 52 will drive the left rack 52 to move down, thereby driving the lower sleeve rod 54, the linkage rod 56 and the discharge plate. 108 moves down slightly (the slight downward movement of the discharge plate 108 will not separate from the discharge port of the box shell 102), and the downward movement of the discharge plate 108 will increase the lower volume of the mixing chamber 103, so that the raw material level in the middle position of the mixing chamber 103 will drop, so that when the feeding port 32 is opened, the raw material in the mixing chamber 103 will not overflow through the feeding port 32, avoiding interference with the feeding operation. After the feeding is completed, the hydraulic rod 111 will reset at a fixed time, thereby driving the linkage rod 34, the internal pressure block 35 and the linkage part 5 to reset. The reset of the internal pressure block 35 will re-seal the through port 104, and cooperate with the external pressure shell 31 to play a role. The pressure weight controls the material flow to improve the mixing efficiency and prevent the material from splashing, and the reset action of the linkage part 5 will cause the discharge plate 108 to move up and reset, so that the mixing chamber 103 returns to a suitable volume space, ensuring that the raw materials in the mixing chamber 103 can be fully mixed by the rotor 22, and the timed feeding operation of the remaining raw materials is the same as above. The timed feeding operation is completed through the above steps; when the mixer is used to produce thermoplastic elastomers, the pressure weight is designed to be separated to a limited extent, so that the pressure weight can be quickly and efficiently added to each raw material in a timely manner without being completely lifted, and the splashing of the raw materials inside the mixing chamber 103 during feeding is avoided;Discharging operation: After the mixing process is completed, the main machine 7 is controlled to fully contract the hydraulic rod 111. The contraction of the hydraulic rod 111 will drive the linkage rod 34 and the inner pressure block 35 to move upward significantly, and then drive the limit guide bar 33 and the outer pressure shell 31 to move upward significantly, so that the movable pressure weight part 3 disengages from the through port 104. At the same time, the significant upward movement of the linkage rod 34 will drive the right rack 52 to move upward significantly. Since the left and right racks 52 are engaged with the transmission gear 51, the significant upward movement of the right rack 52 will drive the left rack 52 to move downward significantly, and then drive the lower sleeve rod 54, the connecting rod 56 and the discharge plate 108 to move downward significantly, so that the discharge plate 108 disengages from the discharge port of the box shell 102, opening the discharge port of the box shell 102. Most of the thermoplastic elastomer in the internal mixer 103 falls from the discharge port and lands on the curved surface of the discharge plate 108, and then enters the hopper shell of the feeding part 8 through the guide. At the same time, according to the program setting, the air pump 61 is controlled to start, and the storage tank 105 is inflated through the shunt pipe 62. As the air pressure increases, the rail shell 63 in the storage tank 105 is pushed to displace towards the through port 104, opening the air outlet 65. At this time, the air flow in the rail shell 63 can rush into the internal mixer 103 through the air outlet 65, discharging the remaining thermoplastic elastomer in the internal mixer 103 and cleaning and discharging the thermoplastic elastomer that may remain on the surface of the discharge plate 108. The cleaned and discharged residual thermoplastic elastomer falls into the hopper shell of the feeding part 8 and is conveyed to the next process for processing through the feeding part 8. Through the above steps, the discharging operation is completed, enabling the internal mixer to automatically and comprehensively discharge the thermoplastic elastomer in the internal mixer 103 after the production of the thermoplastic elastomer, avoiding material residue in the internal mixer 103 and affecting the next processing.;

[0038] In this article, specific examples are used to elaborate on the principle and implementation mode of the present invention. The description of the above examples is only used to help understand the method and its core idea of the present invention. The above is only the preferred implementation mode of the present invention. It should be noted that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. An internal mixer for producing thermoplastic elastomer, comprising a main body (1), a processing part (2), a movable ram part (3), a feeding module (4), a linkage part (5), an auxiliary discharging part (6), a control host (7) and a material conveying part (8), characterized in that: The main body (1) includes a support base (101). A box shell (102) is fixedly connected to the upper side of the support base (101). A kneading chamber (103) is provided inside the box shell (102). A through port (104) communicates with the upper side of the kneading chamber (103). Rail frames (106) are fixedly connected to both the front and rear sides of the lower end face of the box shell (102). Rail blocks (107) are slidably connected inside the rail frames (106). A discharge plate (108) located inside the discharge port of the box shell (102) is fixedly connected to the upper side of a group of the rail blocks (107). A folding plate (110) located behind the through port (104) is fixedly connected to the upper end face of the box shell (102). A hydraulic rod (111) is fixedly connected inside the horizontal plate opening of the folding plate (110). The processing part (2) includes a gear box (21) fixed to the rear side of the box shell (102). A motor (23) is installed on the rear side of the gear box (21). Rotors (22) located inside the kneading chamber (103) are fixedly connected to the front side two secondary shafts of the gear box (21). The movable pressing weight part (3) includes an outer pressing shell (31) located inside the through port (104). A feeding port (32) is provided on the lower side of the outer pressing shell (31). A limiting guide bar (33) is fixedly connected inside the outer pressing shell (31). A linkage rod (34) fixedly connected to the lower end of the hydraulic rod (111) is slidably connected inside the hole position of the limiting guide bar (33). An inner pressing block (35) located inside the feeding port (32) is fixedly connected to the lower end of the linkage rod (34). A feeding module (4) is installed on the upper side of the box shell (102). A control host (7) is installed on the right side of the box shell (102).

2. The internal mixer for producing thermoplastic elastomer according to claim 1, characterized in that: The feeding module (4) includes a guide material frame (41) sleeved on the outer side of the through port (104) and fixedly connected to the box shell (102). Hole plates (42) are fixedly connected to both the left and right sides of the guide material frame (41). Timing communication parts (43) are installed inside the hole positions of the hole plates (42). The timing communication part (43) includes a pipe shell (431) located on the upper side of the box shell (102). Through holes (432) with different heights are provided on both the left and right sides of the pipe shell (431). An electric push rod (433) is fixedly connected to the upper side of the pipe shell (431). An inclined through column (434) located inside the pipe shell (431) is fixedly connected to the lower end of the driving rod of the electric push rod (433). A connecting pipe (435) is fixedly connected inside the upper through hole (432). A hopper seat (436) communicates with the upper side of the connecting pipe (435). A connecting sleeve (437) fixedly connected to the hopper seat (436) is sleeved on the outer side of the pipe shell (431). A weighing cup (44) is installed on the upper side of the hopper seat (436).

3. The internal mixer for producing thermoplastic elastomer according to claim 2, wherein: The motor (23) is fixedly connected to the gearbox (21), the output shaft of the motor (23) is fixedly connected to the rear main shaft of the gearbox (21), heating plates (109) are installed on both sides inside the housing (102), the heating plates (109) are arranged on both sides of the kneading chamber (103), the control host (7) is electrically connected to the motor (23), the hydraulic rod (111), the electric push rod (433), and the heating plate (109), and a touch screen is provided on the front side of the control host (7).

4. The internal mixer for producing thermoplastic elastomer according to claim 2, wherein: Support bars are provided on both sides inside the through port (104), support grooves are formed on both lower sides of the outer pressure shell (31), the outer pressure shell (31) is arranged above the support bars of the through port (104), a spacing is provided between the inner pressure block (35) and the limit guide bar (33), the bottom surfaces on both sides inside the outer pressure shell (31) are arranged as inclined surfaces, and the upper sides on both sides of the inner pressure block (35) are arranged as inclined surfaces.

5. The internal mixer for producing thermoplastic elastomer according to claim 2, characterized in that: The through holes (432) are all arranged above the hole position plate (42) and the material guiding frame (41), the lower through holes (432) are all arranged close to the material guiding frame (41), an inclined channel is arranged inside the inclined through column (434), the inclined channel of the inclined through column (434) is arranged below the through hole (432), and the two through holes (432) on both sides are higher than the two ends of the inclined through column (434) at the same spacing dimension.

6. A Banbury mixer for producing thermoplastic elastomer according to claim 2, characterized in that: The dosing cup (44) is composed of a transparent cup body, a rotary knob, a tray, and a scale bar. The edge of the tray of the dosing cup (44) is rounded, the tray of the dosing cup (44) is closely attached to the inner wall of the transparent cup body, and the scale bar of the dosing cup (44) is located above the tray.

7. The internal mixer for producing thermoplastic elastomer according to claim 2, characterized in that: The linkage part (5) includes a set of two sleeve rods (54). The upper sleeve rod (54) is sleeved outside the linkage rod (34). A connecting rod (56) whose upper end is fixedly connected to the discharge plate (108) is fixedly connected to the inside of the lower sleeve rod (54). Rack bars (52) are fixedly connected to the front ends of the sleeve rods (54). A transmission gear (51) whose rear end is rotatably connected to the housing (102) is meshed between the set of rack bars (52). A limit frame (55) fixedly connected to the housing (102) is slidably connected to the outside of the set of rack bars (52). Limit blocks (53) are fixedly connected to the ends of the rack bars (52) far from the sleeve rods (54). The auxiliary discharging part (6) includes an air pump (61) fixed to the right side of the housing (102). A shunt pipe (62) is communicated with the upper side of the air pump (61). Storage grooves (105) are formed on both sides of the through port (104). The upper ends of both sides of the shunt pipe (62) are communicated with the storage grooves (105). Rail shells (63) are slidably connected to the inside of the storage grooves (105). Air outlets (65) are formed on the lower side plates of the rail shells (63). Tension springs (64) are fixedly connected between the rail shells (63) and the inner walls of the storage grooves (105). The material conveying part (8) is installed above the bottom plate of the support seat (101).

8. A Banbury mixer for producing thermoplastic elastomer according to claim 7, characterized in that: The outer end face of the discharge plate (108) is in contact with the inner wall of the discharge port of the box shell (102). A sealing ring is provided at the upper edge of the discharge plate (108). The tooth parts of the left and right racks (52) are arranged vertically. The material conveying part (8) is composed of a conveying pipe, a spiral conveyor, a motor and a hopper shell. The upper part of the hopper shell of the material conveying part (8) is provided with a split opening. The hopper shell of the material conveying part (8) is arranged below the discharge plate (108). The air pump (61) is electrically connected to the control host (7).

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