Sheet extrusion apparatus with conditioning function

Abstract

The utility model provides a sheet material extrusion equipment with adjusting function, including frame body, the upper end surface of which is transversely arranged with main extruder, and the feeding end of which is installed with main hopper, and the discharge end of which is connected with material distributor, and the frame body is also provided with a presser on one side, and the presser corresponds with the outlet of material distributor, and the upper end surface is also arranged with transverse auxiliary feeding mechanism, and the auxiliary feeding mechanism is connected with the side of material distributor, and the inside of main extruder is provided with guide pipe, and the lower part of guide pipe is vertically provided with sealing seat, and the inside of sealing seat is vertically provided with center tube, and the upper end of center tube is connected with guide pipe, and the upper part of material distributor is provided with connecting cavity, and connecting cavity is sealedly assembled with sealing seat, and extrusion screen head is slidably arranged in connecting cavity, and one end of extrusion screen head slidably extends into center tube, and pressure sensor is installed on the outside of extrusion screen head, and pressure sensor is contacted with the inner wall of connecting cavity through inner spring below, and the working reliability is good, and the product quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of extrusion equipment technology, and in particular to a sheet extrusion equipment with an adjustment function. Background Technology

[0002] In recent years, in order to improve the performance of plastic sheets and reduce their production costs, multi-layer co-extrusion has been widely adopted in the production of plastic sheets. This method has advantages such as saving materials, diversifying materials, eliminating the need for toxic adhesives, and meeting environmental protection requirements.

[0003] Plastic sheets, such as those for polypropylene (PP), polyethylene (PE), and polystyrene (PS), are produced using extruders, followed by die forming, calendering, and calendering. The quality requirements for these sheets necessitate uniform basis weight to ensure consistent thickness. However, during extrusion, the feed rate fluctuates in real-time due to factors such as the amount of material in the hopper, the material temperature, the viscosity, melt flow index, and particle size distribution of the raw material. This results in unstable extrusion flow, with inconsistent material quantity, leading to variations in the basis weight and thickness of the formed sheets. Consequently, these variations fail to meet usage requirements and significantly impact the processing quality of the sheets. Summary of the Invention

[0004] In response to the shortcomings of the existing production technology, the applicant provides a sheet extrusion device with adjustable function. Through the cooperation between the main extruder and the auxiliary feeding mechanism, the sheet extrusion work can be completed conveniently, effectively overcoming the defects of the existing technology and greatly improving the working reliability of the extruder.

[0005] The technical solution adopted in this invention is as follows:

[0006] A sheet extrusion device with adjustable function includes a frame body, a main extruder is arranged laterally on the upper end face of the frame body, a main hopper is installed at the feed end of the main extruder, a material distributor is connected to the discharge end of the frame body, and a platen press is fixedly installed on one side of the frame body. The platen press corresponds to the outlet of the material distributor and is used to further shape and flatten the material extruded in the material distributor.

[0007] The upper surface of the main frame is also provided with a transverse auxiliary feeding mechanism, which is connected to the side of the material distributor.

[0008] The main extruder has the following structure: a guide pipe is installed inside the main extruder, a sealing seat is vertically installed below the guide pipe, a central tube is vertically installed inside the sealing seat, and the upper end of the central tube is connected to the guide pipe; a connecting cavity is provided above the material distributor, the connecting cavity is sealed and assembled with the sealing seat, an extrusion filter head is slidably installed inside the connecting cavity, one end of the extrusion filter head slides into the central tube, and a pressure sensor is installed on the outside of the extrusion filter head, with the pressure sensor contacting the inner wall of the connecting cavity below through an inner spring.

[0009] Its further technical solution lies in:

[0010] The main extruder adopts a unidirectional spiral transmission rod structure.

[0011] Both the main extruder and the auxiliary feeding mechanism are fixedly installed on the top surface of the main frame body, with the installation height of the main extruder being higher than that of the auxiliary feeding mechanism.

[0012] The auxiliary feeding mechanism has the following structure: it includes a first material trough and a second material trough arranged horizontally, with the first material trough located above the second material trough; an auxiliary hopper is vertically installed on the first material trough, and the lower part of the auxiliary hopper is connected to the first material trough through a conveying pipe; the first material trough is connected to the second material trough through a connecting channel; spiral blades are rotatably installed inside the first material trough and the second material trough; a feeding mold is installed at one end of both the first material trough and the second material trough, and the feeding mold is connected to the side of the material distributor through a straight pipe.

[0013] The spiral blades in the first and second feed troughs are independent of each other and rotate to guide the material.

[0014] The material distributor has the following structure: a fixed housing with a main feeding channel at its center, which is connected to the main extruder; a collection chamber connected to the main feeding channel; a discharge head installed at one end of the fixed housing via fasteners, the discharge head having a forming cavity that connects to the collection cavity; symmetrically arranged side feeding channels within the fixed housing, which are connected to the first and second material troughs in the auxiliary feeding mechanism; and symmetrically arranged material transfer components within the fixed housing.

[0015] The structure of the material transfer assembly is as follows: it includes a placement cavity, which is opened inside the fixed housing, and a rotating tube is rotatably connected to each placement cavity;

[0016] An expansion chamber is located on one side of the placement cavity. The expansion chamber has an arc-shaped cross-section and is connected to the side feeding channel. A transfer chamber is provided inside the rotating tube. The transfer chamber is connected to the expansion chamber through a side channel. A material distribution port is also provided on the rotating tube.

[0017] The distribution holes are arranged in multiple sets. The distribution holes are opened in the fixed housing, and the transfer chamber is connected to the corresponding distribution hole through the material distribution port during the rotation adjustment of the rotary tube.

[0018] The distribution orifice is composed of a combination of multiple micro-orifices.

[0019] Each micro-material hole is equipped with a feeding ring, and a limit ring is coaxially fixed to the outside of the feeding ring. The feeding ring is slidably connected to the micro-material hole through the limit ring. A positioning shaft is vertically fixed inside the micro-material hole. The feeding ring and the positioning shaft are slidably sealed together. A support spring is provided on one side of the limit ring.

[0020] The main frame is equipped with a central control module, which is connected to a material pressure sensor installed on the main extruder. The central control module is used to acquire and analyze pressure sensor signal data in real time. The central control module has a parameter classification model. The parameter classification model evaluates and analyzes the material conveying volume based on the acquired pressure sensor signal data and material characteristics, and classifies it into multiple levels. The auxiliary feeding mechanism synchronously corrects the feeding action based on the material conveying volume level. The material transfer component uses the optimal guiding method to convey the material according to the corrected feeding action.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention features a compact and reasonable structure, and is easy to operate. The main extruder and the auxiliary feeding mechanism can coordinate with each other to extrude materials. The main extruder serves as the primary material extrusion and conveying equipment for sheet extrusion, while the auxiliary feeding mechanism can dynamically adjust in real time according to changes in the material extrusion volume in the main extruder. It also employs various conveying actions in conjunction with the main extruder to ensure the continuity and stability of material supply. In addition, the material transfer component in the material distributor uses the optimal guiding method to convey materials according to the conveying actions, thereby improving the forming quality and yield of the sheet. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the main extruder in this invention.

[0025] Figure 3 This is a schematic diagram of the auxiliary feeding mechanism in this invention.

[0026] Figure 4 This is a cross-sectional view of the material distributor in this invention.

[0027] Figure 5 for Figure 4Enlarged diagram of point A in the middle.

[0028] Figure 6 This is a schematic diagram of the feeding ring in this invention.

[0029] Among them: 1. Main frame;

[0030] 2. Main extruder;

[0031] 21. Main hopper; 22. Feed guide pipe; 23. Extrusion filter head; 24. Sealing seat; 25. Central tube; 26. Connecting cavity;

[0032] 3. Material distributor;

[0033] 31. Fixed housing; 32. Main feeding channel; 33. Side feeding channel; 34. Collection chamber; 35. Discharge head; 36. Forming chamber;

[0034] 4. Press plate machine;

[0035] 5. Auxiliary feeding mechanism;

[0036] 51. First hopper; 52. Second hopper; 53. Auxiliary hopper; 54. Conveying pipe; 55. Connecting channel; 56. Feeding mold; 57. Straight pipe;

[0037] 6. Rotary tube;

[0038] 61. Expansion chamber; 62. Transfer chamber; 63. Bypass; 64. Distributor port; 65. Distribution section hole; 66. Feeding ring; 67. Limiting ring; 68. Positioning shaft. Detailed Implementation

[0039] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0040] like Figures 1-6 As shown, the sheet extrusion equipment with adjustment function in this embodiment includes a frame body 1. A main extruder 2 is arranged horizontally on the upper end face of the frame body 1. A main hopper 21 is installed at the feed end of the main extruder 2. A material distributor 3 is connected to the discharge end of the frame body 1. A platen press 4 is also fixedly installed on one side of the frame body 1. The platen press 4 corresponds to the outlet of the material distributor 3. The platen press 4 is used to further shape and flatten the material extruded in the material distributor 3.

[0041] The upper end face of the frame body 1 is also provided with a transverse auxiliary feeding mechanism 5, which is connected to the side of the material distributor 3.

[0042] The structure of the main extruder 2 is as follows: a guide pipe 22 is provided inside the main extruder 2, a sealing seat 24 is vertically provided below the guide pipe 22, a central tube 25 is vertically provided inside the sealing seat 24, and the upper end of the central tube 25 is connected to the guide pipe 22; a connecting cavity 26 is provided above the material distributor 3, the connecting cavity 26 is sealed and assembled with the sealing seat 24, an extrusion filter head 23 is slidably provided inside the connecting cavity 26, one end of the extrusion filter head 23 is slidably extended into the central tube 25, and a pressure sensor is installed on the outside of the extrusion filter head 23, and the pressure sensor is in contact with the inner wall of the connecting cavity 26 through an inner spring.

[0043] The main extruder 2 adopts a unidirectional spiral transmission rod structure.

[0044] Both the main extruder 2 and the auxiliary feeding mechanism 5 are fixedly installed on the top surface of the frame body 1, and the installation height of the main extruder 2 is higher than that of the auxiliary feeding mechanism 5.

[0045] The auxiliary feeding mechanism 5 has the following structure: it includes a first material trough 51 and a second material trough 52 arranged horizontally, with the first material trough 51 located above the second material trough 52; an auxiliary hopper 53 is vertically installed on the first material trough 51, and the lower part of the auxiliary hopper 53 is connected to the first material trough 51 through a conveying pipe 54; the first material trough 51 is connected to the second material trough 52 through a connecting channel 55; spiral blades are rotatably installed inside the first material trough 51 and the second material trough 52; a feeding mold 56 is installed at one end of both the first material trough 51 and the second material trough 52, and the feeding mold 56 is connected to the side of the material distributor 3 through a straight pipe 57.

[0046] The spiral blades in the first feed trough 51 and the second feed trough 52 are independent of each other and rotate to guide the material.

[0047] The material distributor 3 has the following structure: a fixed housing 31, a main feeding channel 32 located at the center of the fixed housing 31, which is connected to the main extruder 2; a collection chamber 34 located inside the fixed housing 31, which is connected to the main feeding channel 32; a discharge head 35 installed at one end of the fixed housing 31 by fasteners, a forming cavity 36 located inside the discharge head 35, which is connected to the collection cavity 34; side feeding channels 33 symmetrically arranged inside the fixed housing 31, which are connected to the first material trough 51 and the second material trough 52 in the auxiliary feeding mechanism 5; and symmetrical material transfer components arranged inside the fixed housing 31.

[0048] The structure of the material transfer assembly is as follows: it includes a placement cavity, which is opened inside the fixed housing 31, and a rotating tube 6 is rotatably connected in each placement cavity;

[0049] The expansion chamber 61 is located on one side of the placement cavity. The cross-section of the expansion chamber 61 is arc-shaped and connected to the side feeding channel 33. The transfer tube 6 is provided with a transfer chamber 62, which is connected to the expansion chamber 61 through the side channel 63. The transfer tube 6 is also provided with a material distribution port 64.

[0050] The distribution section holes 65 are provided in multiple sets. The distribution section holes 65 are opened in the fixed housing 31, and the transfer cavity 62 is connected to the corresponding distribution section hole 65 through the material distribution port 64 during the rotation adjustment of the rotary tube 6.

[0051] The distribution orifice 65 is composed of a combination of multiple micro-holes.

[0052] Each micro-material hole is equipped with a feeding ring 66, and a limit ring 67 is coaxially fixed outside the feeding ring 66. The feeding ring 66 is slidably connected to the micro-material hole through the limit ring 67. A positioning shaft 68 is vertically fixed inside the micro-material hole. The feeding ring 66 and the positioning shaft 68 are slidably sealed together. A support spring is provided on one side of the limit ring 67.

[0053] A central control module is installed on the main frame 1. The central control module is connected to the material pressure sensor installed on the main extruder 2. It is used to acquire and analyze the pressure sensor signal data in real time. The central control module has a parameter classification model. The parameter classification model evaluates and analyzes the material conveying volume based on the acquired pressure sensor signal data and material characteristics, and divides it into multiple levels. The auxiliary feeding mechanism 5 synchronously corrects the conveying action based on the material conveying volume level. The material transfer component uses the optimal guiding method to convey the material according to the corrected conveying action.

[0054] The specific structure and function of the sheet extrusion equipment with adjustment function described in this embodiment are as follows:

[0055] It mainly includes: frame body 1, main hopper 21, main extruder 2, and material distributor 3.

[0056] The main extruder 2 is horizontally arranged on the upper end face of the frame body 1. The main hopper 21 is installed at the feed end of the main extruder 2. The material distributor 3 is vertically installed at the discharge end of the frame body 1. The discharge port inside the main extruder 2 is connected to the feed port of the material distributor 3.

[0057] A platen press 4 is also provided on the side of the main frame 1 near the material distributor 3. The discharge port of the material distributor 3 corresponds to the platen press 4. The platen press 4 is used to further shape and flatten the material extruded from the material distributor 3.

[0058] The upper end face of the frame body 1 is also provided with a secondary feeding mechanism 5. The secondary feeding mechanism 5 is connected to the side feeding channel 33 in the material distributor 3. The secondary feeding mechanism 5 adopts a variety of feeding actions to cooperate with the main extruder 2 to convey materials in the material distributor 3.

[0059] The main extruder 2 adopts a unidirectional spiral transmission rod structure, and a guide pipe 22 is provided inside the main extruder 2. A sealing seat 24 is vertically arranged below the guide pipe 22, and a central tube 25 is vertically arranged inside the sealing seat 24. The upper end of the central tube 25 is connected to the guide pipe 22. A connecting cavity 26 is provided above the material distributor 3. The connecting cavity 26 is sealed and assembled with the sealing seat 24. An extrusion filter head 23 is slidably arranged inside the connecting cavity 26. One end of the extrusion filter head 23 slides into the central tube 25, and a pressure device is installed on the outside of the extrusion filter head 23. The force sensor and the pressure sensor are in contact with the inner wall of the connecting cavity 26 via an inner spring. In other words, the pressure sensor can monitor and provide feedback on the changes in the material extrusion amount in the extrusion filter head 23 in real time by monitoring the changes in the material guiding pressure of the extrusion filter head 23. It should be noted that in order to avoid the material from clogging the extrusion filter head 23 and increasing the resistance of the material passing through the filter, which would cause a large error in the pressure sensor monitoring data, the material needs to be fully filtered in multiple stages before being fed into the main hopper 21, so as to minimize the risk of clogging.

[0060] In this embodiment, the auxiliary feeding mechanism 5 includes:

[0061] The first material trough 51 and the second material trough 52 are both horizontally fixed on one side of the upper end face of the frame body 1, with the first material trough 51 located above the second material trough 52.

[0062] The auxiliary hopper 53 is vertically installed on the first trough 51. The lower part of the auxiliary hopper 53 is connected to the first trough 51 through a conveying pipe 54. The first trough 51 is provided with a connecting channel 55 below the conveying pipe 54, which is connected to the second trough 52. That is, the auxiliary hopper 53 can simultaneously convey materials to the first trough 51 and the second trough 52.

[0063] The spiral blades are rotatably connected within the first feed trough 51 and the second feed trough 52;

[0064] The feeding mold 56 is located on one side of the first material trough 51 and the second material trough 52. The feeding mold 56 has two material channels, and straight pipes 57 are provided outside each material channel. One end of the straight pipe 57 is connected to the material distributor 3.

[0065] In a preferred embodiment, the spiral blades in the first trough 51 and the second trough 52 rotate independently to guide the material, thereby enabling the first trough 51 and the second trough 52 to transport materials simultaneously or individually.

[0066] In this embodiment, the material distributor 3 includes:

[0067] The fixed housing 31 has a main feeding channel 32 located at its center, which is connected to the main extruder 2;

[0068] The material collection chamber 34 is located inside the fixed housing 31 and is connected to the main feeding channel 32.

[0069] The discharge head 35 is detachably mounted on the fixed housing 31. The discharge head 35 is provided with a forming cavity 36, which is sealed and connected to the material collection cavity 34. The forming cavity 36 can realize the initial forming of the sheet after the material is squeezed out.

[0070] The side feeding channels 33 are symmetrically arranged in the fixed housing 31 and located on both sides of the main feeding channel 32. Each side feeding channel 33 is connected to the first material trough 51 and the second material trough 52 in the auxiliary feeding mechanism 5.

[0071] The material transfer assembly is housed within the fixed housing 31.

[0072] In this embodiment, a central control module is installed on the frame body 1. The central control module is connected to the material pressure sensor installed on the main extruder 2. It is used to acquire and analyze the pressure sensor signal data in real time. The central control module has a parameter classification model. The parameter classification model evaluates and analyzes the material conveying amount based on the acquired pressure sensor signal data and material characteristics, and divides it into multiple degree levels, such as moderate, insufficient, too little, too much, and too much. The auxiliary feeding mechanism 5 synchronously corrects the feeding action based on the material conveying amount degree level. The material transfer component adopts the optimal material guiding method to convey the material according to the corrected feeding action. For example, when the evaluation result shows that the material conveying amount is insufficient, the auxiliary feeding mechanism 5 will increase the feeding frequency or increase the feeding speed to ensure that the main extruder 2 receives sufficient material supply. Conversely, if the material conveying volume is too high, the feeding speed will be slowed down or the amount of material fed each time will be reduced to avoid overload. At the same time, after receiving the corrected feeding action command, the material transfer component will flexibly adjust its guiding method (change the feeding angle, use different feeding channels or adjust the feeding position to ensure that the material can be smoothly and evenly conveyed into the collection chamber 34) to further optimize the stability and efficiency of the sheet extrusion process and achieve the best material conveying effect.

[0073] In this embodiment, the material transfer assembly includes:

[0074] The mounting cavity is opened inside the fixed housing 31, and each mounting cavity is rotatably connected to a rotating tube 6;

[0075] The expansion chamber 61 is located on one side of the placement cavity. The cross-section of the expansion chamber 61 is arc-shaped and connected to the side feeding channel 33. The rotating tube 6 is provided with a transfer chamber 62, which is connected to the expansion chamber 61 through the bypass channel 63. The rotating tube 6 is also provided with a material distribution port 64. The rotating tube 6 can be adjusted to deflect in the forward and reverse directions by a bidirectional drive unit located outside the fixed housing 31.

[0076] The distribution section holes 65 are set in multiple groups. The distribution section holes 65 are opened in the fixed housing 31. The transfer chamber 62 is connected to the corresponding distribution section hole 65 through the material distribution port 64 during the rotation adjustment of the rotary tube 6. It should be noted that when the rotary tube 6 is rotated and the material distribution port 64 is connected to different distribution section holes 65, the bypass channel 63 can always be connected to the expansion chamber 61 to ensure that the material continuously enters the expansion chamber 61.

[0077] In this embodiment, the distribution holes 65 are distributed at different angles and connected at different positions in the material collection chamber 34. The distribution holes 65 are composed of multiple micro holes.

[0078] In a preferred embodiment, each micro-material hole is provided with a feeding ring 66, and a limiting ring 67 is coaxially fixed to the outside of the feeding ring 66. The feeding ring 66 is slidably connected to the micro-material hole through the limiting ring 67. A positioning shaft 68 is vertically fixed inside the micro-material hole. The feeding ring 66 and the positioning shaft 68 are slidably sealed together. A support spring is provided on one side of the limiting ring 67. It should be noted that the contact section between the feeding ring 66 and the positioning shaft 68 is constructed as a trapezoidal inclined surface. Thus, when the material transfer assembly is not working, the feeding ring 66 is in sealed contact with the positioning shaft 68 through the elastic force of the support spring. At this time, the material in the main feeding channel 32 in the fixed housing 31 cannot be squeezed into the micro-material hole in the reverse direction through the feeding ring 66.

[0079] In this embodiment, the composition and number of micro-holes in each group of distribution segment holes 65 are different, and different specifications and shapes of feeding rings 66 are used in the micro-holes for material extrusion and conveying. That is to say, according to the degree level of the material conveying volume evaluation in the main extruder 2 based on the parameter classification model, the transfer component can use appropriately matched distribution segment holes 65 to extrude materials, change the material feeding state in the collection chamber 34, so that the materials can be fully and uniformly mixed in the collection chamber 34, thereby dynamically adapting to the changes in the material conveying volume of the main extruder 2, ensuring that no matter how much material there is, an ideal flow state can be formed in the collection chamber 34, promoting the uniform mixing and melting of materials, and improving the quality and consistency of the extruded sheet.

[0080] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A sheet extrusion device with adjustable function, characterized in that: The machine includes a frame body, on which a main extruder is arranged laterally on the upper surface of the frame body. A main hopper is installed at the feed end of the main extruder, and a material distributor is connected to the discharge end of the main extruder. A secondary feeding mechanism is also arranged laterally on the upper surface of the frame body, and the secondary feeding mechanism is connected to the side of the material distributor. The main extruder has the following structure: a guide pipe is installed inside the main extruder, a sealing seat is vertically installed below the guide pipe, a central tube is vertically installed inside the sealing seat, and the upper end of the central tube is connected to the guide pipe; a connecting cavity is provided above the material distributor, the connecting cavity is sealed and assembled with the sealing seat, an extrusion filter head is slidably installed inside the connecting cavity, one end of the extrusion filter head slides into the central tube, and a pressure sensor is installed on the outside of the extrusion filter head, with the pressure sensor contacting the inner wall of the connecting cavity below through an inner spring; The auxiliary feeding mechanism includes a first material trough and a second material trough arranged horizontally. The material distributor includes a fixed housing with a main feeding channel located at the center of the housing, which is connected to the main extruder. The fixed housing also has a collection chamber connected to the main feeding channel. A discharge head is mounted on one end of the fixed housing via fasteners. The discharge head has a forming cavity that connects to the collection cavity. Side feeding channels are symmetrically arranged within the fixed housing, and these two side feeding channels are connected to the first and second material troughs in the auxiliary feeding mechanism. A symmetrical material transfer assembly is also arranged within the fixed housing. The material transfer assembly includes a placement cavity, which is opened inside the fixed housing, and a rotating tube is rotatably connected to each placement cavity; An expansion chamber is located on one side of the placement cavity. The expansion chamber has an arc-shaped cross-section and is connected to the side feeding channel. A transfer chamber is provided inside the rotating tube. The transfer chamber is connected to the expansion chamber through a side channel. A material distribution port is also provided on the rotating tube. The distribution section holes are provided in multiple sets. The distribution section holes are opened in the fixed housing. The transfer chamber is connected to the corresponding distribution section hole through the material distribution port during the rotation adjustment of the rotary tube. The distribution section hole is composed of multiple micro material holes. Each micro-material hole is provided with a feeding ring, and a limit ring is fixed coaxially to the outside of the feeding ring. The feeding ring is slidably connected to the micro-material hole through the limit ring. A positioning shaft is vertically fixed inside the micro-material hole. The feeding ring and the positioning shaft are slidably sealed together. A support spring is provided on one side of the limit ring. The number of micro-holes in each distribution section is different, and different specifications and shapes of feeding rings are used in the micro-holes for material extrusion and conveying. The material transfer component can use appropriately matched distribution section holes to extrude materials and change the material feeding state in the collection chamber.

2. The sheet extrusion equipment with adjustment function as described in claim 1, characterized in that: The main extruder adopts a unidirectional spiral transmission rod structure.

3. The sheet extrusion equipment with adjustment function as described in claim 1, characterized in that: Both the main extruder and the auxiliary feeding mechanism are fixedly installed on the top surface of the main frame body, with the installation height of the main extruder being higher than that of the auxiliary feeding mechanism.

4. The sheet extrusion equipment with adjustment function as described in claim 1, characterized in that: The first material trough is located above the second material trough; a secondary material hopper is vertically installed on the first material trough, and the lower part of the secondary material hopper is connected to the first material trough through a conveying pipe. The first material trough is connected to the second material trough through a connecting channel; spiral blades are rotatably installed inside the first and second material troughs, and a feeding mold is installed at one end of both the first and second material troughs. The feeding mold is connected to the side of the material distributor through a straight pipe.

5. A sheet extrusion device with an adjustable function as described in claim 4, characterized in that: The spiral blades in the first and second feed troughs are independent of each other and rotate to guide the material.

6. The sheet extrusion equipment with adjustment function as described in claim 1, characterized in that: The main frame is equipped with a central control module, which is connected to a pressure sensor installed on the main extruder. The central control module is used to acquire and analyze pressure sensor signal data in real time. The central control module has a parameter classification model. The parameter classification model evaluates and analyzes the material conveying volume based on the acquired pressure sensor signal data and material characteristics, and classifies it into multiple levels. The auxiliary feeding mechanism synchronously corrects the feeding action based on the material conveying volume level. The material transfer component uses the optimal guiding method to convey the material according to the corrected feeding action.

7. A sheet extrusion device with an adjustable function as described in claim 1, characterized in that: A platen press is also fixedly installed on one side of the main frame. The platen press corresponds to the outlet of the material distributor. The platen press is used to further shape and flatten the material extruded from the material distributor.

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