Extruder head

Abstract

The utility model discloses an extruder head which comprises a fixed supporting part, a filtering bearing sliding plate, a porous filtering plate, an extruder head assembly, a forming template and a flow guide structure, and the fixed supporting part is provided with a sliding channel extending in the X-axis direction and a through hole extending in the Z-axis direction; the filtering bearing sliding plate is arranged in the sliding channel in a sliding manner, and at least one perforated plate mounting groove is formed in the filtering bearing sliding plate; the porous filter plate is mounted in one porous plate mounting groove of the filter bearing sliding plate, and a filter channel is formed in the porous filter plate; the extruding machine head assembly is mounted on the fixed supporting part, and a discharging channel is formed in the extruding machine head assembly. According to the utility model, the defective product rate in production can be reduced, materials can uniformly flow in, and meanwhile, the operation is convenient and fast, and the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to an extruder head and belongs to the technical field of extruders. Background Art

[0002] At present, in the extrusion molding process, the extruder head, as a key component of the extrusion equipment, directly affects the molding quality and production efficiency of the material, and ultimately affects the quality of the product.

[0003] After searching the prior art, we discovered that Chinese patent publication number CN205799930U discloses a twin-screw extruder head. During use, we discovered that as material flowed from the die head toward the die plate, the pressure in the middle region of the extruder head was greater than that in the areas on either side. This caused the molten material to flow faster than the material on either side, ultimately causing curling and uneven thickness in the finished product. This not only affected the product's appearance quality but also reduced the production pass rate, negatively impacting production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an extruder head, which can reduce the defective product rate in production, allow materials to flow in evenly, and is convenient to operate and maintain.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an extruder head, comprising:

[0006] A fixed support component, wherein the fixed support component is provided with a sliding channel extending along the X-axis direction and a through hole extending along the Z-axis direction;

[0007] A filter supporting sliding plate, the filter supporting sliding plate being slidably disposed in the sliding channel, and the filter supporting sliding plate being provided with at least one porous plate mounting groove;

[0008] A porous filter plate, the porous filter plate being mounted in one of the porous plate mounting slots of the filter-carrying sliding plate, the porous filter plate being provided with a filter channel, the through-hole, the filter channel and the discharge channel forming a continuous material flow channel;

[0009] An extruder head assembly, the extruder head assembly being mounted on the fixed support component and having a discharge channel provided therein;

[0010] A forming template, the forming template is installed at the outlet end of the extruder head assembly, the forming template is provided with a forming discharge channel, the forming template and the extruder head assembly are both provided with matching notches, and together form a slot-shaped cavity;

[0011] A flow guiding structure is detachably mounted in the groove-shaped cavity, and the flow guiding structure is provided with a flow guiding channel adapted to connect the forming discharge channel of the forming template with the discharge channel of the extruder head assembly.

[0012] Furthermore, a specific structure of a fixed support component is provided, wherein the fixed support component comprises:

[0013] A screen changer front plate and a screen changer rear plate, wherein a sliding channel suitable for accommodating the sliding of the filter bearing sliding plate is formed between the screen changer front plate and the screen changer rear plate;

[0014] The screen changer front plate and the screen changer rear plate are both provided with through holes perpendicular to the sliding channel. The through holes of the screen changer front plate correspond to the through holes of the screen changer rear plate, and together constitute a through hole.

[0015] Furthermore, the sliding channel of the fixed support component is provided with two pads arranged opposite to each other along the Y-axis direction;

[0016] The filter supporting sliding plate is slidably arranged between the pads on both sides.

[0017] Furthermore, the extruder head also includes a water baffle, which is installed on the extruder head assembly.

[0018] Furthermore, a specific structure of a guide structure is provided, wherein the guide structure of the extruder head comprises a guide plate, and the guide plate is provided with a guide groove extending along the length direction thereof;

[0019] The guide groove is provided with a slender groove portion in the middle and flared portions on both sides in the length direction, and the flared portions are trumpet-shaped structures that expand outwards;

[0020] The elongated slot portion is provided with a narrow slot portion in the middle and expanded portions on both sides in the width direction, and the expanded portions are also trumpet-shaped structures that expand outwards.

[0021] Furthermore, in order to reduce the influence of material solidification, the extruder head further comprises a heating device, wherein the heating device comprises an upper heating part and a lower heating part which are separately connected;

[0022] The upper heating portion and the lower heating portion jointly surround and enclose the outer circumference of the fixed support component.

[0023] Furthermore, the heating device also includes a template heating rod;

[0024] The template heating rod is installed on the forming template.

[0025] Furthermore, a specific structure of a pushing device is provided, wherein the extruder head further comprises a pushing device, and the pushing device comprises:

[0026] A driving mechanism, the driving mechanism being fixedly mounted on one side of the fixed support component along the X-axis direction, the driving mechanism being provided with a telescopic rod, one end of which is connected to the filter carrying sliding plate;

[0027] The driving mechanism is suitable for driving the telescopic rod to extend and retract, thereby driving the filter carrying sliding plate to move back and forth along the X-axis direction in the sliding channel.

[0028] Furthermore, in order to make the pressure of the material passing through the porous filter plate consistent, the thickness of the middle area of ​​the porous filter plate is greater than the thickness of the edge area.

[0029] By adopting the above technical solution, the utility model has the following beneficial effects:

[0030] In this utility model, a flow guide structure is provided between the extruder head assembly and the forming plate, thereby avoiding uneven discharge caused by uneven pressure distribution during material flow. Furthermore, the combined design of a porous filter plate and the flow guide structure ensures a stable flow rate and pressure distribution during material flow, ensuring uniform material flow into the forming and discharge channels. Furthermore, a sliding channel extending along the Y-axis facilitates quick replacement of the porous filter plate, simplifying the operation process.

[0031] In addition, a heating device is provided on the extruder head assembly and the fixed support component. The heating device adopts an upper heating part and a lower heating part that are connected separately, which can evenly heat the extruder head assembly and the fixed support component, ensuring precise temperature control during the molding process, improving the adaptability of the equipment under different materials and process conditions, and further improving the molding quality.

[0032] In summary, the utility model reduces the defective product rate in production, and at the same time the device is easy to operate and maintain, and has broad industrial application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view of the extruder head of the present utility model;

[0034] Figure 2 It is a cross-sectional view of the extruder head of the present utility model;

[0035] Figure 3 This is a front view of the flow guide structure of the extruder head of the present utility model;

[0036] Figure 4 This is a cross-sectional view of the flow guide structure of the extruder head of the present invention;

[0037] Figure 5 This is a front view of the heating device of the extruder head of the utility model;

[0038] Figure 6 It is a cross-sectional view of the extruder head assembly of the extruder head of the present invention. DETAILED DESCRIPTION

[0039] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0040] like Figure 1-6 As shown, an extruder head comprises:

[0041] A fixed support component 1 is provided with a sliding channel extending along the X-axis direction and a through hole extending along the Z-axis direction;

[0042] The filter supporting sliding plate 2 is slidably arranged in the sliding channel, and two porous plate mounting grooves are provided on the filter supporting sliding plate 2;

[0043] A porous filter plate 3 is installed in one of the porous plate installation slots of the filter carrying sliding plate 2, and a filter channel is provided on the porous filter plate 3;

[0044] The extruder head assembly 4 is mounted on the fixed support component 1. A discharge channel is provided in the extruder head assembly 4. The through hole, the filter channel and the discharge channel form a continuous material flow channel.

[0045] The forming template 5 is installed at the outlet end of the extruder head assembly 4. The forming template 5 is provided with a forming discharge channel. The forming template 5 and the extruder head assembly 4 are both provided with matching notches to form a groove-shaped cavity.

[0046] The flow guiding structure 6 is detachably mounted in the groove-shaped cavity. The flow guiding structure 6 is provided with a flow guiding channel adapted to connect the forming discharge channel of the forming template 5 with the discharge channel of the extruder head assembly 4 .

[0047] In this embodiment, if Figure 2-4 and Figure 6 As shown, by providing a flow guide structure 6 between the extruder head assembly 4 and the forming template 5, the problem of uneven discharge caused by uneven pressure distribution during material flow is avoided. Furthermore, the combined design of the porous filter plate 3 and the flow guide structure 6 maintains a stable flow rate and pressure distribution during material flow, ensuring that the material enters the forming and discharge channels evenly. Furthermore, the provision of a sliding channel extending along the Y-axis facilitates the rapid replacement of the porous filter plate 3, simplifying the operation process.

[0048] Specifically, such as Figure 1-2As shown, the fixed support component 1 may have the following structure, including:

[0049] A screen changer front plate 11 and a screen changer rear plate 12 are provided, wherein a sliding channel is formed between the screen changer front plate 11 and the screen changer rear plate 12 to accommodate the sliding of the filter bearing sliding plate 2;

[0050] Both the screen changer front plate 11 and the screen changer rear plate 12 are provided with through holes perpendicular to the sliding channel. The through holes of the screen changer front plate 11 correspond to the through holes of the screen changer rear plate 12 and together constitute through holes.

[0051] Specifically, such as Figure 1-2 As shown, the sliding channel of the fixed support component 1 is provided with two pads 13 arranged opposite to each other along the Y-axis direction;

[0052] The filter supporting sliding plate 2 is slidably arranged between the pads 13 on both sides.

[0053] Specifically, such as Figure 2 and Figure 6 As shown, the extruder head further includes a water baffle 7 , which is mounted on the extruder head assembly 4 .

[0054] Specifically, such as Figure 2-4 As shown, the guide structure 6 includes a guide plate, and the guide plate is provided with a guide groove extending along the length direction thereof;

[0055] The guide groove is provided with a slender groove portion in the middle and flared portions on both sides in the length direction, and the flared portions are trumpet-shaped structures that expand outwards;

[0056] The elongated groove portion is provided with a narrow groove portion in the middle and expanded portions on both sides in the width direction, and the expanded portions are also trumpet-shaped structures expanding outwards.

[0057] In this embodiment, if Figure 2-4 and Figure 6 As shown, the function of the guide groove is to adjust the pressure distribution of the material during the flow process and reduce the problem of excessive material flow in the central area. When the material enters the guide groove from the discharge channel of the extruder head assembly 4, a certain amount of pressure is generated in the narrow groove area in the middle, forcing some material to diffuse to the sides, thereby achieving a more uniform material distribution.

[0058] In practical applications, the specific size and shape of the guide structure 6 can be customized according to different material properties and production requirements.

[0059] Specifically, such as Figure 1 and Figure 5 As shown, the extruder head further includes a heating device 8, which includes an upper heating portion 81 and a lower heating portion 82 that are separately connected;

[0060] The upper heating portion and the lower heating portion together surround and enclose the outer circumference of the fixed support component 1 .

[0061] Specifically, such as Figure 1-2 As shown, the heating device 8 further includes a template heating rod 83;

[0062] The template heating rod is installed on the forming template 5.

[0063] In this embodiment, if Figure 1-2 and Figure 5 As shown, the function of the heating device 8 is to ensure that the entire extruder head is maintained within the ideal operating temperature range. The split design not only facilitates installation and maintenance, but also allows independent control according to the heating requirements of different areas, thereby achieving more precise temperature management. A second heating plate is also installed outside the extruder head assembly 4. The second heating plate, the upper heating part 81, the lower heating part 82, and the template heating rod 83 are all electric heaters.

[0064] The number of the template heating rods 83 is not limited to one, and can be multiple.

[0065] Specifically, such as Figure 1-2 As shown, the extruder head also includes a pushing device, which can be a structure including:

[0066] The driving mechanism 91 is fixedly mounted on one side of the fixed support member 1 along the X-axis direction. The driving mechanism 91 is provided with a telescopic rod, one end of which is connected to the filter carrying sliding plate 2;

[0067] The driving mechanism 91 is adapted to drive the filter supporting sliding plate 2 to move back and forth along the X-axis direction in the sliding channel by driving the telescopic rod to extend and retract.

[0068] In this embodiment, if Figure 1 As shown, in actual applications, the specific type of the driving mechanism 91 can be selected according to actual needs, and common types include hydraulic cylinders, air cylinders or electric push rods.

[0069] Specifically, such as Figure 2 As shown, the thickness of the middle area of ​​the porous filter plate 3 is greater than the thickness of the edge area.

[0070] In this embodiment, if Figure 1-6As shown, the thickness of the central region of the porous filter plate 3 is greater than that of the edge regions to improve material flow and filtration efficiency. The thinner edge regions reduce material flow resistance in these areas, promoting even distribution of material toward the edges. This balances pressure distribution to a certain extent, ensuring a more even flow of material throughout the porous filter plate 3. This not only improves filtration efficiency but also extends the service life of the porous filter plate 3, reducing damage to the plate caused by excessive localized pressure. This reduces material retention and prevents degradation caused by prolonged material residence time.

[0071] The extruder head of this embodiment includes a fixed support component 1, with a filter support slide 2 mounted on one end. The filter support slide 2 has a backing plate 13 at its upper end and a backing plate 13 at its lower end, housing a porous filter plate 3. A screen changer front plate 11 is mounted on the other end of the fixed support component 1. Support rods are mounted on both sides of the upper and lower backing plates, with a protective plate mounted on one end of the support rods and a drive mechanism 91 mounted on the other end of the support rods. The top of the fixed support component 1 is provided with an upper heating portion 81 of a heating device 8, with a connecting plate positioned between the upper backing plate 13 and the upper heating portion 81. The bottom of the fixed support component 1 is provided with a lower heating portion 82 of the heating device 8. An extruder head assembly 4 is mounted on one end of the extruder head assembly 4, with a forming die plate 5 mounted on one end. A flow guide structure 6 is positioned between the extruder head assembly 4 and the forming die plate 5, and a water retaining plate 7 is positioned below the extruder head assembly 4. A die plate heating rod 83 is positioned within the forming die plate 5, and a handle block is positioned on the forming die plate 5, with a handle at one end of the handle block. A connecting rod is provided on the extruder head assembly 4 , a hinged rod is provided above the connecting plate, a hinged transverse connecting piece is provided between the connecting cylinder and the hinged rod, and heating elements of the heating device 8 are also provided around the extruder head assembly 4 .

[0072] The fixed support component 1 is connected to the extruder head assembly 4 by a transverse connector, which can realize the separation of the extruder head assembly 4 and facilitate internal cleaning. When the material flows from the extruder head assembly 4 to the forming template 5, the internal middle pressure is greater than the pressure on both sides, and the flow rate of the middle material will be greater than the flow rate of the materials on both sides. Therefore, a diversion structure is provided between the extruder head assembly 4 and the forming template 5. The presence of the diversion structure can adjust the pressure of the material flowing from the extruder head assembly 4 to the forming template 5, thereby balancing the flow rate of the material, so that the material flows evenly into the forming template 5, and thus ensures that the product emerging from the forming template 5 will not be deformed or uneven in size.

[0073] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An extruder head, characterized in that, include: A fixed support component (1), wherein the fixed support component (1) is provided with a sliding channel extending along the X-axis direction and a through hole extending along the Z-axis direction; A filter carrying sliding plate (2), the filter carrying sliding plate (2) being slidably arranged in the sliding channel, and the filter carrying sliding plate (2) being provided with at least one porous plate mounting groove; A porous filter plate (3), the porous filter plate (3) being mounted in one of the porous plate mounting grooves of the filter-carrying sliding plate (2), and the porous filter plate (3) being provided with a filter channel; An extruder head assembly (4), the extruder head assembly (4) being mounted on the fixed support component (1), a discharge channel being provided in the extruder head assembly (4), the through hole, the filter channel and the discharge channel forming a continuous material flow channel; A forming template (5), the forming template (5) is installed at the outlet end of the extruder head assembly (4), the forming template (5) is provided with a forming discharge channel, and the forming template (5) and the extruder head assembly (4) are both provided with matching notches to form a slot-shaped cavity together; A flow guiding structure (6) is detachably mounted in the groove-shaped cavity, and the flow guiding structure (6) is provided with a flow guiding channel suitable for connecting the forming discharge channel of the forming template (5) and the discharge channel of the extruder head assembly (4).

2. The extruder head according to claim 1, characterized in that The fixed support component (1) comprises: A screen changer front plate (11) and a screen changer rear plate (12), wherein a sliding channel suitable for accommodating the sliding of the filter bearing sliding plate (2) is formed between the screen changer front plate (11) and the screen changer rear plate (12); The screen changer front plate (11) and the screen changer rear plate (12) are both provided with through holes perpendicular to the sliding channel, and the through holes of the screen changer front plate (11) correspond to the through holes of the screen changer rear plate (12), and together constitute a through hole.

3. The extruder head according to claim 1, characterized in that The sliding channel of the fixed support component (1) is provided with two pads (13) arranged opposite to each other along the Y-axis direction; The filter supporting sliding plate (2) is slidably arranged between the pads (13) on both sides.

4. The extruder head according to claim 1, characterized in that It also includes a water baffle (7), which is installed on the extruder head assembly (4).

5. The extruder head according to claim 1, characterized in that The guide structure (6) comprises a guide plate, and the guide plate is provided with a guide groove extending along the length direction thereof; The guide groove is provided with a slender groove portion in the middle and flared portions on both sides in the length direction, and the flared portions are trumpet-shaped structures that expand outwards; The elongated slot portion is provided with a narrow slot portion in the middle and expanded portions on both sides in the width direction, and the expanded portions are also trumpet-shaped structures that expand outwards.

6. The extruder head according to claim 1, characterized in that It also includes a heating device (8), wherein the heating device (8) includes an upper heating part (81) and a lower heating part (82) that are separately connected; The upper heating portion (81) and the lower heating portion (82) together surround and enclose the outer periphery of the fixed support component (1).

7. The extruder head according to claim 6, characterized in that The heating device (8) further comprises a template heating rod (83); The template heating rod (83) is installed on the forming template (5).

8. The extruder head according to claim 1, characterized in that Also included is a pushing device, the pushing device comprising: A driving mechanism (91), the driving mechanism (91) being fixedly mounted on one side of the fixed support component (1) along the X-axis direction, the driving mechanism (91) being provided with a telescopic rod, one end of which is connected to the filter carrying sliding plate (2); The driving mechanism (91) is suitable for driving the telescopic rod to extend and retract, thereby driving the filter supporting sliding plate (2) to move back and forth along the X-axis direction in the sliding channel.

9. The extruder head according to claim 1, characterized in that The thickness of the middle region of the porous filter plate (3) is greater than the thickness of the edge region.

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