Long fiber introduction equipment
By designing a long fiber introduction device, the problem of inconvenient cleaning of residual raw materials at the outlet of the twin-screw extruder was solved, achieving uniform impregnation and mixing of long fibers, improving production efficiency, and avoiding raw material waste.
Patent Information
- Application Number
- CN202520442111.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-14
AI Technical Summary
After use, existing twin-screw extruders require manual cleaning of residual material at the discharge port, which is inconvenient, wastes material, and affects performance.
Design a long fiber introduction device, including an extruder body, a positioning mounting plate, a raw material mixing tank, a reciprocating self-locking drive component, a raw material stirring component, a transmission structure, a cleaning structure, etc., to achieve automatic cleaning of residual raw materials by pre-impregnating long fibers and using a sliding discharge nozzle, thus simplifying the operation process.
It achieves uniform impregnation and mixing of long fibers, avoids raw material waste, improves the efficiency of twin-screw extruders, simplifies the cleaning process, and saves time.
Smart Images
Figure CN223918609U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wood-imitation foam material production technology, and more specifically, it relates to a long fiber introduction device. Background Technology
[0002] In the production process of wood-like foamed materials, various raw materials (resin, foaming agent, stabilizer, filler, etc.) and long fibers need to be fed into the screw area of a twin-screw extruder by a feeder. The two screws of the extruder mesh with each other and form a complex flow channel during rotation. Then, under the conveying and shearing action of the screws, the fibers are impregnated in the molten plastic to complete the introduction of long fibers.
[0003] Based on the above, some raw material remains at the discharge port after the existing twin-screw extruder is used. In order to avoid waste of raw material, tools are needed to clean the raw material remaining at the discharge port, which is inconvenient and time-consuming, thus affecting the performance of the twin-screw extruder. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a long fiber introduction device to solve the problem that some raw material remains at the discharge port after the existing twin-screw extruder has been used. In order to avoid waste of raw material, tools are needed to clean the residual raw material at the discharge port, which is inconvenient and time-consuming, thus affecting the performance of the twin-screw extruder.
[0005] The purpose and effect of this utility model's long fiber introduction device are achieved by the following specific technical means:
[0006] A long fiber introduction device includes an extruder body, a positioning mounting plate, a raw material mixing tank, a reciprocating self-locking drive, a raw material agitator, a transmission structure, a cleaning structure, a raw material separating baffle, and a raw material limiting baffle. The positioning mounting plate is bolted to the rear side of the extruder body; the raw material mixing tank is bolted to the upper part of the positioning mounting plate; the reciprocating self-locking drive is bolted to the upper part of the positioning mounting plate; the raw material agitator is rotatably connected to the middle part of the positioning mounting plate, and the raw material agitator is coaxially and fixedly connected to the output shaft of the reciprocating self-locking drive; the transmission structure is disposed inside the raw material mixing tank; the raw material separating baffle is fixedly connected to the middle part of the raw material mixing tank; the raw material limiting baffle is rotatably connected to the lower part of the raw material separating baffle; and the cleaning structure is disposed on the right side of the extruder body.
[0007] Furthermore, the transmission structure includes a second-direction limiting pawl, a second-direction limiting ratchet, and a sealing cover; the second-direction limiting pawl is hinged to the lower part of the raw material stirring component; the second-direction limiting ratchet is fixedly connected to the middle part of the raw material limiting baffle, and the second-direction limiting ratchet and the second-direction limiting pawl together form a ratchet transmission mechanism; the sealing cover is bolted to the lower part of the raw material limiting baffle.
[0008] Furthermore, the cleaning structure includes a limiting mounting bracket and a limiting guide rod; two limiting mounting brackets are provided, and the two limiting mounting brackets are respectively bolted to the front and rear sides of the extruder body; two limiting guide rods are provided, and the two limiting guide rods are respectively slidably connected to the right side of the two limiting mounting brackets.
[0009] Furthermore, the cleaning structure also includes a fixed transmission rack and a limiting transmission gear; the fixed transmission rack is bolted to the right side of the extruder body, and a mounting plate is slidably connected to the upper part of the fixed transmission rack; the limiting transmission gear is rotatably connected to the right side of the mounting plate, and the limiting transmission gear meshes with the fixed transmission rack.
[0010] Furthermore, the cleaning structure also includes a reciprocating screw, a sliding nozzle, and a raw material extruder; the sliding nozzle is fixedly connected to the inner side of the two limiting guide rods; the reciprocating screw is rotatably connected to the middle of the mounting plate; the raw material extruder is slidably connected to the upper part of the sliding nozzle; and the raw material extruder is threadedly connected to the reciprocating screw.
[0011] Furthermore, the cleaning structure also includes a position limiting screw and a position limiting frame; the position limiting screw is rotatably connected to the right side of the sliding discharge nozzle; the position limiting frame is threadedly connected to the outside of the position limiting screw.
[0012] Furthermore, the cleaning structure also includes a first direction limiting pawl and a first direction limiting ratchet; the first direction limiting pawl is hinged to the upper part of the transmission reciprocating screw; the first direction limiting ratchet is fixedly connected to the middle part of the limiting transmission gear, and the first direction limiting pawl and the first direction limiting ratchet together form a ratchet transmission mechanism.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention pre-impregnates the long fibers by adding them to a mixing tank, ensuring uniform impregnation and effectively preventing fiber clumping. A raw material separator and a limiting baffle separate the raw materials before and after mixing, allowing them to be fully and evenly mixed before slowly entering the twin-screw extruder, ensuring effective fiber introduction. By shaking the sliding nozzle, the extruder can expel any remaining raw material. The operation is simple and quick, effectively avoiding the inconvenience of cleaning raw materials with tools, saving considerable time, preventing material waste, and improving the overall performance of the twin-screw extruder. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a cross-sectional structural diagram of the raw material mixing tank of this utility model.
[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the raw material limiting baffle and sealing cover of this utility model.
[0018] Figure 4 This is a schematic diagram showing the cooperation relationship between the fixed transmission rack and the limiting transmission gear of this utility model.
[0019] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.
[0020] Figure 6 This is a schematic diagram of the structure of the sliding discharge nozzle of this utility model.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0022] 1. Extruder body; 101. Limiting mounting bracket; 102. Fixed transmission rack; 103. Transmission reciprocating screw; 104. Limiting guide rod; 105. Sliding discharge nozzle; 106. Position limiting screw; 107. Position limiting frame; 108. Raw material extruder; 109. First direction limiting pawl; 110. First direction limiting ratchet; 111. Limiting transmission gear; 2. Positioning mounting plate; 3. Raw material mixing tank; 4. Reciprocating self-locking drive component; 5. Raw material mixing component; 501. Second direction limiting pawl; 6. Raw material separating baffle; 7. Raw material limiting baffle; 701. Second direction limiting ratchet; 702. Sealing cover. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0024] Example 1:
[0025] As attached Figure 1 To be continued Figure 3 As shown:
[0026] This utility model provides a long fiber introduction device, including an extruder body 1, a positioning mounting plate 2, a raw material mixing tank 3, a reciprocating self-locking drive 4, a raw material stirring component 5, a transmission structure, a raw material separating baffle 6, and a raw material limiting baffle 7; the positioning mounting plate 2 is bolted to the rear side of the extruder body 1; the raw material mixing tank 3 is bolted to the upper part of the positioning mounting plate 2, and a heating wire is provided on the inner side of the raw material mixing tank 3; the reciprocating self-locking drive 4 is bolted to the upper part of the positioning mounting plate 2; the raw material stirring component 5 is rotatably connected to the middle part of the positioning mounting plate 2, and the raw material stirring component 5 is coaxially fixedly connected to the output shaft of the reciprocating self-locking drive 4; the transmission structure is located inside the raw material mixing tank 3; the raw material separating baffle 6 is fixedly connected to the middle part of the raw material mixing tank 3; and the raw material limiting baffle 7 is rotatably connected to the lower part of the raw material separating baffle 6.
[0027] The transmission structure includes a second-direction limiting pawl 501, a second-direction limiting ratchet 701, and a sealing cover 702. The second-direction limiting pawl 501 is hinged to the lower part of the raw material mixing component 5. The second-direction limiting ratchet 701 is fixedly connected to the middle part of the raw material limiting baffle 7. The second-direction limiting ratchet 701 and the second-direction limiting pawl 501 together form a ratchet transmission mechanism. The sealing cover 702 is bolted to the lower part of the raw material limiting baffle 7.
[0028] The specific usage and function of this embodiment are as follows: Raw materials and long fibers are added to the raw material mixing tank 3. The reciprocating self-locking drive 4 is activated, causing the raw material stirring component 5 to rotate and mix the raw materials and long fibers evenly. At this time, the second-direction limiting pawl 501 slides inside the second-direction limiting ratchet 701. After the raw materials and long fibers are evenly mixed, the reciprocating self-locking drive 4 drives the raw material stirring component 5 to reverse, causing the second-direction limiting pawl 501 to push the second-direction limiting ratchet 701 and the raw material limiting baffle 7 to rotate. At this time, the evenly mixed raw materials enter the lower part of the raw material mixing tank 3 and slowly enter the extruder body 1, passing through a twin-screw extruder. The rotation of the screw of the rod extruder further mixes the raw materials and long fibers. The sealing cover 702 can block the second direction limiting pawl 501 and the second direction limiting ratchet 701. After the mixed raw materials enter the lower part of the raw material mixing tank 3, the raw material limiting baffle 7 rotates one revolution and returns to its original position. At this time, new raw materials and long fibers are added to the raw material mixing tank 3. By changing the rotation direction of the reciprocating self-locking drive 4 and the raw material stirring 5, the new raw materials and long fibers can be mixed. The positioning mounting plate 2 can fix the position of the raw material mixing tank 3, and the raw material separating baffle 6 can divide the raw material mixing tank 3 into different areas.
[0029] Example 2:
[0030] As attached Figure 2 To be continued Figure 6 As shown:
[0031] Based on Embodiment 1, a cleaning structure is also included; the cleaning structure is located on the right side of the extruder body 1.
[0032] The cleaning structure includes a limiting mounting bracket 101 and a limiting guide rod 104. There are two limiting mounting brackets 101, which are bolted to the front and rear sides of the extruder body 1, respectively. There are two limiting guide rods 104, which are slidably connected to the right side of the two limiting mounting brackets 101, respectively.
[0033] The cleaning structure also includes a fixed transmission rack 102 and a limiting transmission gear 111; the fixed transmission rack 102 is bolted to the right side of the extruder body 1, and a mounting plate is slidably connected to the upper part of the fixed transmission rack 102; the limiting transmission gear 111 is rotatably connected to the right side of the mounting plate, and the limiting transmission gear 111 meshes with the fixed transmission rack 102.
[0034] The cleaning structure also includes a reciprocating screw 103, a sliding nozzle 105, and a raw material extruder 108. The sliding nozzle 105 is fixedly connected to the inner side of two limit guide rods 104. The reciprocating screw 103 is rotatably connected to the middle of the mounting plate. The raw material extruder 108 is slidably connected to the upper part of the sliding nozzle 105. The raw material extruder 108 is threadedly connected to the reciprocating screw 103.
[0035] The cleaning structure also includes a position limiting screw 106 and a position limiting frame 107; the position limiting screw 106 is rotatably connected to the right side of the sliding discharge nozzle 105; the position limiting frame 107 is threadedly connected to the outside of the position limiting screw 106.
[0036] The cleaning structure also includes a first direction limiting pawl 109 and a first direction limiting ratchet 110; the first direction limiting pawl 109 is hinged to the upper part of the transmission reciprocating screw 103; the first direction limiting ratchet 110 is fixedly connected to the middle part of the limiting transmission gear 111, and the first direction limiting pawl 109 and the first direction limiting ratchet 110 together form a ratchet transmission mechanism.
[0037] The specific usage and function of this embodiment: When it is necessary to clean the raw material remaining in the sliding discharge nozzle 105, first rotate the position limiting screw 106 to move the position limiting frame 107 to the right. At this time, the sliding discharge nozzle 105 is no longer limited in front and back. Pushing the sliding discharge nozzle 105 will allow it to slide back and forth under the guidance of the limiting guide rod 104 and the limiting mounting frame 101. At this time, the raw material extruder 108 will drive the mounting plate and the transmission reciprocating screw 103 to slide along the fixed transmission rack 102. At this time, the limiting transmission gear 111 will drive the transmission reciprocating screw 103 to rotate under the meshing action with the fixed transmission rack 102, so that the raw material extruder 108 slides along the sliding discharge nozzle 105, thereby extruding the residual raw material from the sliding discharge nozzle 105. The first direction limiting pawl 109 and the first direction limiting ratchet 110 can make the limiting transmission gear 111 and the transmission reciprocating screw 103 rotate in one direction.
[0038] The following points should be noted in this article:
[0039] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.
[0040] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0041] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A long fiber introduction device, comprising an extruder body (1), a positioning mounting plate (2), a raw material mixing tank (3), a reciprocating self-locking drive component (4), a raw material stirring component (5), a transmission structure, a cleaning structure, a raw material separating baffle (6), and a raw material limiting baffle (7); wherein the positioning mounting plate (2) is bolted to the rear side of the extruder body (1); characterized in that: The raw material mixing tank (3) is bolted to the upper part of the positioning mounting plate (2); the reciprocating self-locking drive (4) is bolted to the upper part of the positioning mounting plate (2); the raw material stirring component (5) is rotatably connected to the middle part of the positioning mounting plate (2), and the raw material stirring component (5) is coaxially fixedly connected to the output shaft of the reciprocating self-locking drive (4); the transmission structure is set inside the raw material mixing tank (3); the raw material separating baffle (6) is fixedly connected to the middle part of the raw material mixing tank (3); the raw material limiting baffle (7) is rotatably connected to the lower part of the raw material separating baffle (6); the cleaning structure is set on the right side of the extruder body (1).
2. The long fiber introduction device as described in claim 1, characterized in that: The transmission structure includes a second direction limiting pawl (501), a second direction limiting ratchet (701), and a sealing cover (702); the second direction limiting pawl (501) is hinged to the lower part of the raw material stirring component (5); the second direction limiting ratchet (701) is fixedly connected to the middle part of the raw material limiting baffle (7), and the second direction limiting ratchet (701) and the second direction limiting pawl (501) together form a ratchet transmission mechanism; the sealing cover (702) is bolted to the lower part of the raw material limiting baffle (7).
3. The long fiber introduction device as described in claim 1, characterized in that: The cleaning structure includes a limiting mounting bracket (101) and a limiting guide rod (104); there are two limiting mounting brackets (101), which are bolted to the front and rear sides of the extruder body (1); there are two limiting guide rods (104), which are slidably connected to the right side of the two limiting mounting brackets (101) respectively.
4. The long fiber introduction device as described in claim 3, characterized in that: The cleaning structure also includes a fixed transmission rack (102) and a limiting transmission gear (111); the fixed transmission rack (102) is bolted to the right side of the extruder body (1), and a mounting plate is slidably connected to the upper part of the fixed transmission rack (102); the limiting transmission gear (111) is rotatably connected to the right side of the mounting plate, and the limiting transmission gear (111) meshes with the fixed transmission rack (102).
5. The long fiber introduction device as described in claim 4, characterized in that: The cleaning structure also includes a reciprocating screw (103), a sliding nozzle (105), and a raw material extruder (108); the sliding nozzle (105) is fixedly connected to the inner side of the two limiting guide rods (104); the reciprocating screw (103) is rotatably connected to the middle of the mounting plate; the raw material extruder (108) is slidably connected to the upper part of the sliding nozzle (105); the raw material extruder (108) is threadedly connected to the reciprocating screw (103).
6. The long fiber introduction device as described in claim 5, characterized in that: The cleaning structure also includes a position limiting screw (106) and a position limiting bracket (107); the position limiting screw (106) is rotatably connected to the right side of the sliding discharge nozzle (105); the position limiting bracket (107) is threadedly connected to the outside of the position limiting screw (106).
7. The long fiber introduction device as described in claim 5, characterized in that: The cleaning structure further includes a first direction limiting pawl (109) and a first direction limiting ratchet (110); the first direction limiting pawl (109) is hinged to the upper part of the transmission reciprocating screw (103); the first direction limiting ratchet (110) is fixedly connected to the middle part of the limiting transmission gear (111), and the first direction limiting pawl (109) and the first direction limiting ratchet (110) together form a ratchet transmission mechanism.