Longitudinal and transverse adjustable locking large-width PEEK plate material extrusion equipment and extrusion process thereof

Abstract

The present application relates to the technical field of extrusion molding, in particular to a large-width PEEK plate extrusion equipment with adjustable length and width and locking function and an extrusion process thereof, comprising: a second adjusting plate, which can move relative to an extrusion head along a direction perpendicular to the extrusion direction of the PEEK plate; a first guide part and a plurality of second guide parts, the first guide part and the second guide part, and the second guide parts adjacent to each other are provided with abutting and adapting protrusions and recesses, the second guide part is connected with the second adjusting plate through an elastic guide structure; an extension structure is installed on the extrusion head, the extension structure cooperates with a trigger shaft which is detachably installed in the second guide part, and can make one or more groups of second guide parts move away from the first guide part; an abutting structure is arranged on the side of the extrusion head, and the abutting structure is sealingly abutted with the recess arranged on the first guide part or the second guide part, thereby improving the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of extrusion molding technology, specifically to a wide-width PEEK sheet extrusion equipment and its extrusion process that is adjustable and lockable in both directions. Background Technology

[0002] Polyetheretherketone (PEEK), a high-performance thermoplastic engineering plastic, possesses excellent high-temperature resistance, chemical corrosion resistance, and mechanical properties, and is widely used in aerospace, medical devices, and electronics industries. With the increasing popularity of PEEK products, the recycling of waste and recycled materials generated during processing has gradually become a key focus of the industry. In the extrusion production of PEEK sheets, the width and thickness of the extrusion need to be flexibly adjusted according to different product specifications to achieve efficient material utilization and cost reduction.

[0003] Currently, most common PEEK sheet extrusion equipment uses a symmetrically arranged baffle structure for width adjustment, changing the outlet width of the molten material by adjusting the distance between the two sets of baffles. However, when extruding narrower sheets, the baffles need to extend a considerable distance into the extrusion head. This creates a stagnant zone between the baffle and the inner wall of the extrusion head, where material flow is slow or even stagnant. Prolonged residence time in this zone leads to increased heating, causing caking and carbonization, which not only affects the surface quality of the extruded sheet but can also lead to material degradation. In severe cases, it can even clog the extrusion head, causing production interruptions.

[0004] To alleviate the aforementioned problems, some existing technologies replace the baffle with a triangular inclined plate structure. The inclined surface of the plate guides the molten material towards the outlet, thereby reducing material retention inside the baffle. However, the working length of the triangular inclined plate is directly related to the required extrusion width. When producing PEEK sheets of different widths, it is necessary to disassemble and replace the corresponding triangular inclined plate, and then readjust it. This process is cumbersome and time-consuming, extending the product changeover cycle and reducing production efficiency. Furthermore, to accommodate various width specifications, companies need to stock a large number of triangular inclined plates of different sizes, increasing mold storage costs and management complexity, which is detrimental to achieving low-cost, high-efficiency recycled material extrusion production. Summary of the Invention

[0005] The purpose of this invention is to provide a wide-width PEEK sheet extrusion equipment and extrusion process with adjustable and lockable longitudinal and transverse dimensions, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A wide-width PEEK sheet extrusion machine with adjustable longitudinal and transverse locking features, comprising:

[0008] An extruder and an extrusion head, wherein the extrusion head is provided with an extrusion width adjustment component and an extrusion thickness adjustment component;

[0009] The extrusion width adjustment component includes:

[0010] A second adjusting plate is disposed on the side of the extruder head, and the second adjusting plate can move relative to the extruder head along a direction perpendicular to the extrusion direction of the PEEK sheet.

[0011] The first guide part and multiple sets of second guide parts are disposed on the side of the second adjusting plate away from the extrusion direction of the PEEK sheet. There are protrusions and recesses that abut and adapt between the first guide part and the second guide part, and between two adjacent sets of second guide parts. The second guide part and the second adjusting plate are connected by an elastic guide structure.

[0012] When the first guide portion is attached to one or more sets of second guide portions, a triangular structure can be formed;

[0013] An extension structure is mounted on the extrusion head, and the extension structure cooperates with a trigger shaft detachably mounted in the second guide, enabling one or more sets of the second guides to move away from the first guide;

[0014] An abutment structure is provided on the side of the extruder head, and the abutment structure seals against the recess provided on the first guide or the second guide.

[0015] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the extrusion thickness adjustment assembly includes a first adjustment plate slidably installed inside the extrusion head and multiple sets of adjustment bolts rotatably installed on the extrusion head, the adjustment bolts being threadedly connected to the first adjustment plate.

[0016] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the second adjusting plate is connected to the second electric telescopic rod provided on the extrusion head, and the second adjusting plate is provided with an extension, which slides and fits against the first adjusting plate;

[0017] The first guide portion is fixedly mounted on the second adjustment plate.

[0018] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the elastic guiding structure includes a guide plate detachably mounted on the second adjusting plate and a hysteresis cavity opened on the second guiding part. Multiple sets of convex shafts are provided on the inner wall of the hysteresis cavity, and the convex shafts are slidably adapted to the guide grooves provided on the guide plate.

[0019] The elastic guiding structure also includes a cylindrical spring connecting the inner wall of the hysteresis cavity to the guide plate.

[0020] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the guide channel includes multiple sets of inclined channels and multiple sets of horizontal channels arranged on the guide plate, the multiple sets of inclined channels are parallel to each other, and the multiple sets of horizontal channels are parallel to each other.

[0021] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the extension structure includes a third electric telescopic rod installed on the extrusion head, a support plate is connected to the actuating end of the third electric telescopic rod, and an inclined surface is provided at the end of the support plate away from the third electric telescopic rod. The inclined surface cooperates with the trigger shaft, enabling the cam shaft to move sequentially along the inclined groove and the horizontal groove.

[0022] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the abutting structure includes a hysteresis box and a chute disposed on the side of the extrusion head, a side baffle is slidably installed in the chute, and an abutting part is provided on one side of the side baffle, the abutting part being adapted to the recessed part;

[0023] The other end of the side baffle is connected to the first electric telescopic rod installed on the hysteresis box.

[0024] The wide-width PEEK sheet extrusion equipment with adjustable cross-section and locking as described above also includes:

[0025] A support is provided on the side of the extrusion head away from the extruder, and a guide groove is provided on the support;

[0026] A first support roller group and a second support roller group are provided. The first support roller group is rotatably mounted on the bracket. The second support roller group is rotatably connected to a slider that is slidably mounted in the guide groove. The slider is connected to a fourth electric telescopic rod provided on the side of the bracket.

[0027] An annular connection structure is provided on the first support roller group and the second support roller group. The annular connection structure can deliver coolant into the first support roller group and the second support roller group when the first support roller group and the second support roller group rotate.

[0028] The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described above: the first support roller group and the second support roller group are both formed by multiple sets of the support cooling rollers. A central tube is provided inside the support cooling roller. One end of the central tube is connected to the support cooling roller and extends to the outside of the support cooling roller, and the other end has a gap reserved with the inner wall of the support cooling roller.

[0029] The annular connection structure includes a through hole on the outer circumference of the supporting cooling roller and a rotating connector that is rotatably and sealingly connected to the supporting cooling roller. Coolant entering the rotating connector can enter the supporting cooling roller through the through hole.

[0030] A process for extruding PEEK sheets using the aforementioned adjustable and locking wide-width PEEK sheet extrusion equipment includes the following steps:

[0031] Step 1: According to production needs, first adjust the extrusion thickness of the PEEK sheet using the extrusion thickness adjustment component, and then adjust the extrusion width of the PEEK sheet using the extrusion width adjustment component.

[0032] Step 2: When the extrusion width adjustment component is activated, the extension structure is activated, causing the second guide to move toward the first guide under the action of the elastic guide structure, and when the abutment structure moves away from the second adjustment plate, the first guide is engaged with multiple sets of second guides.

[0033] Step 3: Control the stroke of the second adjusting plate toward the inside of the extruder, and then control the extension structure to move the second guide part outside the extruder away from the extruder, while the abutment structure moves to press against the corresponding first guide part or second guide part.

[0034] Step 4: The extruder operates to perform the extrusion operation.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] By incorporating multiple sets of second guide sections, elastic guide structures, and extension structures, the modular splicing effectively eliminates potential material stagnation zones on the inner side of the second adjusting plate, ensuring the continuity and uniformity of material flow and avoiding degradation or color difference issues caused by localized material accumulation. Furthermore, simple axial adjustment allows the second adjusting plate to extend into the extrusion head at different lengths, eliminating the need for frequent disassembly and replacement of integral triangular molds of different specifications as required by existing technologies. This significantly reduces the labor intensity and time cost of equipment debugging, while also reducing the types of spare parts inventory and management difficulties, thus improving the flexibility and economy of production changeover.

[0037] By designing protrusions and recesses, the material is first guided from the protrusion toward the adjacent second guide or first guide, thus preventing the material from entering the gap between two adjacent sets of second guides or between the second and first guides to a certain extent. Secondly, when the recesses and protrusions are combined, a force is generated that drives the two sets of second guides or between the second and first guides to move closer to each other, resulting in a stronger mutual adhesion between the second guides inside the extruder head and between the second and first guides. This makes the first and second guides more integrated, further preventing the material from entering the gap between two adjacent sets of second guides or between the second and first guides. Attached Figure Description

[0038] Figure 1 A schematic diagram of a large-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0039] Figure 2 This is a schematic diagram of the extrusion head in a wide-width PEEK sheet extrusion machine with adjustable and lockable longitudinal and transverse dimensions.

[0040] Figure 3 This is a cross-sectional view of the extrusion head in a wide-width PEEK sheet extrusion machine with adjustable and lockable longitudinal and transverse dimensions.

[0041] Figure 4 An exploded view of the extrusion head and contact structure in a wide-width PEEK sheet extrusion machine with adjustable and lockable longitudinal and transverse dimensions.

[0042] Figure 5 This is a schematic diagram of the first adjusting plate, the first extension, the second extension, and the extension structure in a wide-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0043] Figure 6 Exploded view of the structure of the first adjusting plate, the first extension, and the second extension in a wide-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0044] Figure 7 This is a schematic diagram of the internal structure of the second extension section in a wide-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0045] Figure 8 for Figure 7 Enlarged view of the structure at point A in the middle.

[0046] Figure 9 This is a schematic diagram of the extension structure in a wide-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0047] Figure 10This is a schematic diagram of the support frame, the first support roller group, and the second support roller group in a wide-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0048] Figure 11 An exploded view of the annular connection structure in a wide-width PEEK sheet extrusion equipment with adjustable and lockable longitudinal and transverse dimensions.

[0049] Figure 12 This is a cross-sectional view of the supporting cooling rollers in a wide-width PEEK sheet extrusion machine with adjustable and lockable longitudinal and transverse dimensions.

[0050] In the diagram: 1. Extruder; 2. Extrusion head; 201. Hysteresis chamber; 202. Slide groove; 3. Adjusting bolt; 4. First adjusting plate; 5. Side baffle; 501. Abutment part; 502. First electric telescopic rod; 6. Second adjusting plate; 601. Extension part; 602. First guide part; 603. Second electric telescopic rod; 7. Second guide part; 701. Protrusion part; 702. Recessed part; 703. Hysteresis cavity; 704. Convex shaft; 8. Guide plate; 801. Inclined groove; 802. Horizontal groove; 9. Cylindrical spring; 10. Trigger shaft; 11. Third electric telescopic rod; 12. Support plate; 1201. Inclined surface; 13. Bracket; 1301. Guide groove; 14. Slider; 15. Support cooling roller; 1501. Through hole; 16. Rotary connector; 17. Central tube; 18. Fourth electric telescopic rod. Detailed Implementation

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0052] Please see Figures 1-12 As an embodiment of the present invention, the wide-width PEEK sheet extrusion equipment with adjustable width and height includes an extruder 1 and an extrusion head 2. The extrusion head 2 is capable of heating and melting plastic waste. The extrusion head 2 is provided with an extrusion width adjustment component and an extrusion thickness adjustment component. The extrusion thickness adjustment component includes a first adjustment plate 4 slidably installed inside the extrusion head 2 and multiple sets of adjustment bolts 3 rotatably installed on the extrusion head 2. The adjustment bolts 3 are threadedly connected to the first adjustment plate 4.

[0053] In this embodiment, the position of the first adjusting plate 4 in the extrusion head 2 can be adjusted by rotating the adjusting bolt 3, thereby adjusting the extrusion thickness of the PEEK sheet. The use of multiple sets of adjusting bolts 3 to support the first adjusting plate 4 in sections helps maintain the stability of its position during extrusion, thus ensuring a uniform extrusion thickness of the PEEK sheet.

[0054] The extrusion width adjustment assembly includes a second adjustment plate 6, a first guide 602 and multiple sets of second guides 7, an extension structure and an abutment structure.

[0055] The second adjusting plate 6 is disposed on the side of the extrusion head 2. The second adjusting plate 6 can move relative to the extrusion head 2 along a direction perpendicular to the extrusion direction of the PEEK sheet. The second adjusting plate 6 is connected to the second electric telescopic rod 603 disposed on the extrusion head 2. The second adjusting plate 6 is provided with an extension 601, which slides against the first adjusting plate 4.

[0056] In this embodiment, when it is necessary to adjust the extrusion width of the PEEK sheet, the second adjusting plate 6 can be moved by controlling the second electric telescopic rod 603. Since the extension 601 remains in sliding contact with the first adjusting plate 4, the first adjusting plate 4 and the second adjusting plate 6 will not interfere with each other during operation.

[0057] In addition, a second adjusting plate 6 is provided on both sides of the extrusion head 2. When adjusting the extrusion width, the two sets of second adjusting plates 6 move relative to each other or towards each other to achieve symmetrical adjustment, so that the PEEK sheet is always located in the middle of the extrusion head 2 when it is discharged, thereby ensuring that the molten material entering the extrusion head 2 can flow evenly.

[0058] Please see Figure 2 , Figures 5-7 The first guide portion 602 and multiple sets of second guide portions 7 are disposed on the side of the second adjusting plate 6 away from the extrusion direction of the PEEK sheet. Protrusions 701 and recesses 702 are provided between the first guide portion 602 and the second guide portions 7, and between adjacent sets of second guide portions 7. When the first guide portion 602 is in contact with one or more sets of second guide portions 7, a triangular structure is formed. It should be noted that the ends of the first guide portion 602 and the second guide portions 7 away from the second adjusting plate 6 are all provided with inclined surfaces of the same slope. These inclined surfaces guide the molten material entering the extruder head 2 towards the outlet direction, effectively preventing the formation of a stagnant zone inside the second adjusting plate 6, avoiding problems such as caking and carbonization due to overheating of the material, thereby ensuring the extrusion quality of the PEEK sheet and improving the product yield.

[0059] Furthermore, a recessed portion 702 is provided at one end of the inclined surface of the first guide portion 602, and a recessed portion 702 is provided at one end of the inclined surface of the second guide portion 7, while a protrusion 701 is provided at the other end. The protrusion 701 on the second guide portion 7 adjacent to the first guide portion 602 can fit into the recessed portion 702 on the first guide portion 602. The protrusion 701 and the recessed portion 702 between two adjacent sets of second guide portions 7 can also fit into each other. In this way, when the molten material comes into contact with the second guide portion 7, it can be guided from the protrusion 701 toward the adjacent second guide portion 7 or the first guide portion 602, which to a certain extent prevents the material from entering the gap between two adjacent sets of second guide portions 7 or between the second guide portion 7 and the first guide portion 602.

[0060] Furthermore, inclined surfaces are also provided in the recessed portion 702 and the protruding portion 701. This allows the two sets of inclined surfaces to abut when the recessed portion 702 and the protruding portion 701 are combined. During the abutting process, the abutting force can generate a force that drives the two sets of second guide portions 7 and the second guide portion 7 and the first guide portion 602 to move closer to each other. This allows the second guide portions 7 inside the extruder head 2 to have a stronger mutual adhesion force, making the first guide portion 602 and the second guide portion 7 more integrated, and further preventing material from entering the gap between the two adjacent sets of second guide portions 7 or between the second guide portion 7 and the first guide portion 602.

[0061] The thickness of the second adjusting plate 6, the first guide part 602 and the second guide part 7 is the same as the height of the space formed inside the extruder head 2.

[0062] Please see Figures 6-8 The first guide part 602 is fixedly disposed on the second adjusting plate 6, and the second guide part 7 is connected to the second adjusting plate 6 through an elastic guide structure;

[0063] The elastic guiding structure includes a guide plate 8 detachably mounted on the second adjusting plate 6 and a hysteresis cavity 703 formed on the second guiding part 7. The inner wall of the hysteresis cavity 703 is provided with multiple sets of convex shafts 704. The convex shafts 704 are slidably adapted to the guide grooves provided on the guide plate 8. The guide grooves include multiple sets of inclined grooves 801 and multiple sets of horizontal grooves 802 provided on the guide plate 8. The multiple sets of inclined grooves 801 are parallel to each other, and the multiple sets of horizontal grooves 802 are parallel to each other. The inclined grooves 801 are parallel to the inclined surfaces provided in the recessed part 702 and the protruding part 701, and the length of the inclined grooves 801 is greater than the inclined surfaces.

[0064] The elastic guiding structure also includes a cylindrical spring 9 connecting the inner wall of the hysteresis cavity 703 and the guide plate 8.

[0065] In the initial state, the cylindrical spring 9 is in a stretched state, and the elastic force it provides pulls the convex shaft 704 toward the end of the inclined groove 801 away from the horizontal groove 802, thereby maintaining a high degree of contact between the second guide portion 7 and the first guide portion 602, as well as between two adjacent sets of second guide portions 7. When the extension structure is activated and acts on one set of second guide portions 7, the convex shaft 704 in the second guide portion 7 moves along the inclined groove 801, causing the second guide portion 7 to separate from the first guide portion 602 or the adjacent second guide portion 7 (the corresponding protrusion 701 disengages from the recess 702). At this time, the other second guide portions 7 located on the side of the second guide portion 7 away from the first guide portion 602, because they are locked together by the protrusion 701 and the recess 702, will move together with the activated second guide portions 7. Thus, some of the second guide portions 7 can be attached to the first guide portion 602 and enter the interior of the extruder head 2, while the remaining second guide portions 7 remain outside the extruder head 2. In this way, the depth of the second adjusting plate 6 entering the extrusion head 2 can be precisely controlled according to production needs, and a predetermined number of second guiding parts 7 can be matched to guide the molten material, effectively preventing the material from forming a stagnant area in the extrusion head 2, avoiding problems such as local overheating and carbonization, thereby improving the extrusion quality and yield of PEEK sheets.

[0066] Furthermore, at least two sets of convex shafts 704 are respectively provided on the two inner walls of the hysteresis cavity 703, and correspondingly, at least two sets of guide grooves are provided on the guide plate 8. Through the cooperation of the convex shafts 704 and the guide grooves, the side of the second guide part 7 that is away from the inclined plane can always remain parallel to the second adjusting plate 6 during the movement, so that the two can always remain in contact when the second guide part 7 moves toward the second adjusting plate 6. This can ensure the smoothness and directional consistency of the extension and retraction movement of the second guide part 7, and ensure the tightness of the contact between the second guide part 7 and the second adjusting plate 6.

[0067] Please see Figures 8-9 The extension structure is mounted on the extrusion head 2, and the extension structure cooperates with the trigger shaft 10 which is detachably mounted in the second guide 7, enabling one or more sets of the second guide 7 to move away from the first guide 602;

[0068] The extension structure includes a third electric telescopic rod 11 mounted on the extrusion head 2. A support plate 12 is connected to the actuating end of the third electric telescopic rod 11. An inclined surface 1201 is provided at one end of the support plate 12 away from the third electric telescopic rod 11. The inclined surface 1201 cooperates with the trigger shaft 10, enabling the convex shaft 704 to move sequentially along the inclined groove 801 and the horizontal groove 802.

[0069] In this application, the depth to which the second adjusting plate 6 extends into the extruder head 2 is designed to be an integer multiple of the width of the second guide portion 7, and the width of each second guide portion 7 is consistent. For example, let the length of the first guide portion 602 along the second adjusting plate 6 be a, and the width of each group of second guide portions 7 be b. When the length of the second adjusting plate 6 extending into the extruder head 2 is a+b, then the part inside the extruder head 2 is one group of first guide portions 602 plus one group of second guide portions 7. When the length of the second adjusting plate 6 extending into the extruder head 2 is a+2b, then the part inside the extruder head 2 is one group of first guide portions 602 plus two groups of second guide portions 7. This structure, which arranges the second guide section 7 into multiple continuously connected groups, effectively eliminates the material stagnation zone that may form inside the second adjusting plate 6 through modular splicing, ensuring the continuity and uniformity of material flow and avoiding degradation or color difference problems caused by local material accumulation. On the other hand, the second adjusting plate 6 can be extended into the extruder head 2 in different lengths through simple axial adjustment, eliminating the need for frequent disassembly and replacement of integral triangular molds of different specifications as required by existing technologies. This significantly reduces the labor intensity and time cost of equipment debugging, while also reducing the types of spare parts inventory and management difficulty, and improving the flexibility and economy of production changeover.

[0070] In this embodiment, in the initial state, the two adjacent sets of second guide portions 7 and the second guide portion 7 and the first guide portion 602 are in a mutually fitted state. At this time, the second electric telescopic rod 603 drives the second adjusting plate 6 to move in a direction perpendicular to the side of the extrusion head 2. When the second adjusting plate 6 moves to a predetermined position, the side plane of the extrusion head 2 is exactly coplanar with the side of the first guide portion 602 facing the second guide portion 7, or the abutment position between the two adjacent sets of second guide portions 7. In this state, the third electric telescopic rod 11 drives the support plate 12 to move towards the interior of the reflux cavity 703, and the inclined surface 1201 on it acts on the trigger shaft 10, causing the trigger shaft 10 to generate a force along the direction of the second adjusting plate 6. Under this force, the convex shaft 704 inside the second guide portion 7 moves sequentially along the inclined groove 801 and the horizontal groove 802, thereby separating the second guide portion 7 located outside the extrusion head 2 from the second guide portion 7 located inside, providing space for the entry of the abutment structure.

[0071] Please see Figure 2 , Figure 4 The abutting structure is disposed on the side of the extrusion head 2, and the abutting structure is sealed and abutted against the recessed portion 702 disposed on the first guide portion 602 or the second guide portion 7;

[0072] The abutting structure includes a condensation box 201 and a slide groove 202 disposed on the side of the extrusion head 2. A side baffle 5 is slidably installed in the slide groove 202. An abutting part 501 is disposed on one side of the side baffle 5. The abutting part 501 is adapted to the recessed part 702.

[0073] The other end of the side baffle 5 is connected to the first electric telescopic rod 502 installed on the hysteresis box 201.

[0074] In this embodiment, when adjusting the depth of the second adjusting plate 6 into the extrusion head 2, the first electric telescopic rod 502 moves synchronously, causing the side baffle 5 to separate from the first guide part 602 or the second guide part 7. When the second guide part 7, which is outside the extrusion head 2, is pushed open, the first electric telescopic rod 502 will move in the opposite direction and drive the side baffle 5 toward the second adjusting plate 6 until the abutting part 501 on the side baffle 5 abuts against the corresponding recessed part 702, thereby achieving a sealing effect on the side of the extrusion head 2 and preventing the molten material from overflowing from the side of the extrusion head 2 during the extrusion process, which would lead to material waste and a drop in extrusion pressure.

[0075] Please see Figure 1 , Figures 10-12 The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking also includes: a bracket 13, a first support roller group, a second support roller group, and an annular connecting structure.

[0076] The bracket 13 is disposed on the side of the extrusion head 2 away from the extruder 1, and the bracket 13 is provided with a guide groove 1301;

[0077] The first support roller group is rotatably mounted on the bracket 13, and the second support roller group is rotatably connected to the slider 14 slidably mounted in the guide groove 1301. The slider 14 is connected to the fourth electric telescopic rod 18 disposed on the side of the bracket 13.

[0078] Both the first support roller group and the second support roller group are formed by multiple sets of the support cooling rollers 15. A central tube 17 is provided inside the support cooling roller 15. One end of the central tube 17 is connected to the support cooling roller 15 and extends to the outside of the support cooling roller 15, while the other end has a gap reserved with the inner wall of the support cooling roller 15.

[0079] The annular connection structure is disposed on the first support roller group and the second support roller group. The annular connection structure can deliver coolant toward the interior of the first support roller group and the second support roller group when the first support roller group and the second support roller group rotate.

[0080] The annular connection structure includes a through hole 1501 on the outer circumference of the supporting cooling roller 15 and a rotating connector 16 that is rotatably and sealingly connected to the supporting cooling roller 15. Coolant entering the rotating connector 16 can enter the supporting cooling roller 15 through the through hole 1501.

[0081] In this embodiment, by controlling the movement of the fourth electric telescopic rod 18, the gap between the first support roller group and the second support roller group can be adjusted to match the extrusion thickness of the PEEK sheet. After the PEEK sheet is extruded, it can be smoothly pulled between the first support roller group and the second support roller group, thereby assisting in the cooling and shaping of the sheet.

[0082] Specifically, during the traction movement of the PEEK sheet, the first and second support roller groups rotate synchronously. At this time, an external coolant pumping device pumps coolant into the rotating connector 16. The coolant enters the interlayer between the support cooling roller 15 and the central tube 17 through the through-hole 1501, carrying away the high temperature generated on the surface of the support cooling roller 15 due to heat exchange with the PEEK sheet. When the coolant flows to the end of the interlayer, it turns back and enters the interior of the central tube 17, significantly extending the flow path of the coolant in the support cooling roller 15, resulting in longer heat exchange time and higher heat exchange efficiency. Through this structure, the support cooling roller 15 can achieve more thorough heat exchange with the PEEK sheet, allowing the sheet to cool and solidify more quickly, thereby effectively improving the solidification quality, reducing deformation, and ensuring the flatness and dimensional stability of the PEEK sheet.

[0083] As an embodiment of the present invention, a process for extruding PEEK sheets using the aforementioned adjustable and locking wide-width PEEK sheet extrusion equipment is also proposed, comprising the following steps:

[0084] Step 1: According to production needs, first adjust the extrusion thickness of the PEEK sheet using the extrusion thickness adjustment component, and then adjust the extrusion width of the PEEK sheet using the extrusion width adjustment component.

[0085] Step 2: When the extrusion width adjustment component is activated, the extension structure is activated, causing the second guide 7 to move toward the first guide 602 under the action of the elastic guide structure. When the abutment structure moves away from the second adjustment plate 6, the first guide 602 and multiple sets of second guides 7 are in a combined state.

[0086] Step 3: Control the stroke of the second adjusting plate 6 toward the inside of the extruder head 2, and then control the extension structure to move the second guide 7, which is outside the extruder head 2, away from the extruder head 2. At the same time, the abutment structure moves to press against the corresponding first guide 602 or second guide 7.

[0087] Step 4: Extruder 1 starts working and performs the extrusion operation.

[0088] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0089] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wide-width PEEK sheet extrusion device with adjustable longitudinal and transverse locking, comprising: An extruder and an extrusion head, wherein the extrusion head is capable of heating and melting plastic waste, and the extrusion head is provided with an extrusion width adjustment component and an extrusion thickness adjustment component; The extrusion width adjustment assembly is characterized in that it comprises: A second adjusting plate is disposed on the side of the extruder head, and the second adjusting plate can move relative to the extruder head along a direction perpendicular to the extrusion direction of the PEEK sheet. The first guide part and multiple sets of second guide parts are disposed on the side of the second adjusting plate away from the extrusion direction of the PEEK sheet. There are protrusions and recesses that abut and adapt between the first guide part and the second guide part, and between two adjacent sets of second guide parts. The second guide part and the second adjusting plate are connected by an elastic guide structure. When the first guide portion is attached to one or more sets of second guide portions, a triangular structure can be formed; An extension structure is mounted on the extrusion head, and the extension structure cooperates with a trigger shaft detachably mounted in the second guide, enabling one or more sets of the second guides to move away from the first guide; An abutment structure is provided on the side of the extruder head, and the abutment structure seals against the recess provided on the first guide or the second guide.

2. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking as described in claim 1, characterized in that, The extrusion thickness adjustment assembly includes a first adjustment plate slidably installed inside the extrusion head and multiple sets of adjustment bolts rotatably installed on the extrusion head, wherein the adjustment bolts are threadedly connected to the first adjustment plate.

3. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 1, characterized in that, The second adjusting plate is connected to the second electric telescopic rod provided on the extrusion head, and the second adjusting plate is provided with an extension portion, which slides and fits against the first adjusting plate; The first guide portion is fixedly mounted on the second adjustment plate.

4. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 1, characterized in that, The elastic guiding structure includes a guide plate detachably mounted on the second adjusting plate and a hysteresis cavity formed on the second guiding part. The inner wall of the hysteresis cavity is provided with multiple sets of convex shafts, and the convex shafts are slidably adapted to the guide grooves provided on the guide plate. The elastic guiding structure also includes a cylindrical spring connecting the inner wall of the hysteresis cavity to the guide plate.

5. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 4, characterized in that, The guide groove includes multiple sets of inclined grooves and multiple sets of horizontal grooves disposed on the guide plate. The multiple sets of inclined grooves are parallel to each other, and the multiple sets of horizontal grooves are parallel to each other.

6. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 5, characterized in that, The extension structure includes a third electric telescopic rod installed on the extrusion head. A support plate is connected to the actuating end of the third electric telescopic rod. An inclined surface is provided at the end of the support plate away from the third electric telescopic rod. The inclined surface cooperates with the trigger shaft, enabling the cam shaft to move sequentially along the inclined groove and the horizontal groove.

7. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 1, characterized in that, The abutting structure includes a condensation box and a chute disposed on the side of the extruder head. A side baffle is slidably installed in the chute, and an abutting part is disposed on one side of the side baffle, which is adapted to the recessed part. The other end of the side baffle is connected to the first electric telescopic rod installed on the hysteresis box.

8. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 1, characterized in that, Also includes: A support is provided on the side of the extrusion head away from the extruder, and a guide groove is provided on the support; A first support roller group and a second support roller group are provided. The first support roller group is rotatably mounted on the bracket. The second support roller group is rotatably connected to a slider that is slidably mounted in the guide groove. The slider is connected to a fourth electric telescopic rod provided on the side of the bracket. An annular connection structure is provided on the first support roller group and the second support roller group. The annular connection structure can deliver coolant into the first support roller group and the second support roller group when the first support roller group and the second support roller group rotate.

9. The wide-width PEEK sheet extrusion equipment with adjustable longitudinal and transverse locking according to claim 8, characterized in that, Both the first support roller group and the second support roller group are formed by multiple sets of the support cooling rollers. A central tube is provided inside the support cooling roller. One end of the central tube is connected to the support cooling roller and extends to the outside of the support cooling roller, while the other end has a gap reserved with the inner wall of the support cooling roller. The annular connection structure includes a through hole on the outer circumference of the supporting cooling roller and a rotating connector that is rotatably and sealingly connected to the supporting cooling roller. Coolant entering the rotating connector can enter the supporting cooling roller through the through hole.

10. A process for extruding PEEK sheets using a cross-sectionally adjustable and locking wide-width PEEK sheet extrusion equipment as described in claim 1, characterized in that, Includes the following steps: Step 1: According to production needs, first adjust the extrusion thickness of the PEEK sheet using the extrusion thickness adjustment component, and then adjust the extrusion width of the PEEK sheet using the extrusion width adjustment component. Step 2: When the extrusion width adjustment component is activated, the extension structure is activated, causing the second guide to move toward the first guide under the action of the elastic guide structure. When the abutment structure moves away from the second adjustment plate, the first guide is engaged with multiple sets of second guides. Step 3: Control the stroke of the second adjusting plate toward the inside of the extruder, and then control the extension structure to move the second guide part outside the extruder away from the extruder, while the abutment structure moves to press against the corresponding first guide part or second guide part. Step 4: The extruder operates to perform the extrusion operation.

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