A Portable Melt-Blown Spinning Component and Its Adjustment Method

Abstract

The present invention provides a portable meltblown spinning component and an adjustment method thereof. For a portable meltblown spinning component, it includes a spinneret plate. On both sides of the pointed end surface at the center position, a left air knife and a right air knife are respectively installed, and an air gap is formed between them and the pointed end surface. By rotating the left air knife and the right air knife by 180° and interchanging their installation positions, the width of the air gap can be changed. When the width of the air gap needs to be changed, only the installation positions of the left air knife and the right air knife need to be interchanged. It is not only simple and convenient to operate, but also has a wider application range and lower cost of the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of melt - blown spinning, and particularly to a portable melt - blown spinning assembly and an adjustment method thereof. Background Art

[0002] Chinese Patent CN212655888U discloses a new type of medium - sized and small - sized melt - blown die head, which includes a flow - guiding plate and a spinneret plate. Air knives are installed on both sides of the conical connecting part of the spinneret plate. The gap between the air knife and the conical connecting part forms an air gap.

[0003] Since the width of the air gap is fixed and the applicable range is small, when production needs to be changed, and thus the width of the air gap needs to be changed, it is generally necessary to re - design and produce the melt - blown die head, which will increase the cost.

[0004] Therefore, how to improve the applicable range of the melt - blown die head and reduce the cost has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] To solve the technical problems in the background art, the present invention discloses a portable melt - blown spinning assembly and an adjustment method thereof.

[0006] The present invention provides a portable melt - blown spinning assembly, which includes a spinneret plate. Left and right air knives are respectively installed on both sides of the pointed end surface at the center position, and an air gap is formed between them and the pointed end surface. By rotating the left and right air knives by 180° and exchanging their installation positions, the width of the air gap can be changed.

[0007] When the width of the air gap needs to be changed, only the installation positions of the left and right air knives need to be exchanged. This is not only simple and convenient to operate, but also the present invention has a wider applicable range and lower cost.

[0008] The specific structure for changing the width of the air gap by changing the installation positions of the left and right air knives is as follows: on both sides of the pointed end surface of the spinneret plate, a first card slot and a second card slot are respectively provided; at the bottoms of the left and right air knives, a first card block and a second card block are respectively provided; a first groove is formed between the first card blocks; a second groove is formed between the second card blocks; by exchanging the installation positions of the left and right air knives, the first groove is aligned with the first card slot, the second groove is aligned with the second card slot, or the first card block is clamped into the second card slot and the second card block is clamped into the first card slot.

[0009] Since the meltblown spinning component works at high temperature, the left air knife and the right air knife are prone to deformation. Replacing the new left air knife and right air knife will increase the cost. Therefore, further improvement is made to solve this problem. Specifically, the first adjusting bolt and the second adjusting bolt are installed on both sides of the spinneret plate; the first adjusting bolt is used to drive the left air knife or the right air knife to approach the tip end face; the second adjusting bolt is used to drive the left air knife or the right air knife away from the tip end face. When the left air knife and the right air knife are deformed, they can be reshaped by screwing the first adjusting bolt or the second adjusting bolt to make their shapes meet the usage requirements, thereby reducing the cost.

[0010] The specific structure of the spinneret plate is as follows: the first installation groove and the second installation groove are respectively arranged on both sides of the spinneret plate located at the tip end face;

[0011] The first clamping groove and the second clamping groove are respectively arranged at the bottoms of the first installation groove and the second installation groove;

[0012] The left air knife and the right air knife are respectively installed in the first installation groove and the second installation groove;

[0013] The first adjusting bolt is threadedly connected to the outer groove wall of the first groove or the second groove, and its end abuts against the left air knife or the right air knife;

[0014] The second adjusting bolt passes through the outer groove wall of the first groove or the second groove and is threadedly connected to the left air knife or the right air knife.

[0015] Since the deformation amounts of the left air knife and the right air knife are small and the detection difficulty is large, further improvement is made to solve this problem. Specifically, the first pin hole and the second pin hole are arranged in the first installation groove;

[0016] The third pin hole and the fourth pin hole are arranged in the second installation groove;

[0017] The left air knife is provided with a fifth pin hole and a sixth pin hole;

[0018] The right air knife is provided with a seventh pin hole and an eighth pin hole;

[0019] By switching the installation positions of the left air knife and the right air knife, the sixth pin hole and the first pin hole are coaxially arranged, the seventh pin hole and the fourth pin hole are coaxially arranged, or the fifth pin hole and the third pin hole are coaxially arranged, and the eighth pin hole and the second pin hole are coaxially arranged.

[0020] Insert the pin shaft into the pin hole, and by observing whether the pin shaft can be smoothly inserted into the spinneret plate, it can be judged whether the left air knife or the right air knife is deformed.

[0021] The present invention also provides a method for adjusting a portable meltblown spinning component. The initial state is set with the first groove facing the first clamping groove and the second groove facing the second clamping groove, and it includes the following steps:

[0022] S1. Take out the pin shafts in the pin holes;

[0023] S2. Remove the left air knife and the right air knife;

[0024] S3. Horizontally rotate the left air knife and the right air knife by 180° and interchange their installation positions;

[0025] S4. Insert the pin shafts into the fifth pin hole and the eighth pin hole respectively;

[0026] S5. If the pin shafts can be smoothly inserted into the third pin hole or the second pin hole, execute step S7; otherwise, execute step S6;

[0027] S6. Rotate the first adjusting bolt or the second adjusting bolt to adjust the positions of the left air knife or the right air knife, so that the fifth pin hole and the third pin hole are coaxial, and the eighth pin hole and the second pin hole are coaxial, enabling the pin shafts to be smoothly inserted into the third pin hole or the second pin hole;

[0028] S7. Tighten the fastening bolts to fix the left air knife and the right air knife on the spinneret plate.

[0029] Through the above steps, the width of the air gap can be quickly adjusted, saving the adjustment time. Description of the Drawings

[0030] The present invention will be further described below in conjunction with the drawings and embodiments.

[0031] Figure 1 is the top view of the present invention;

[0032] Figure 2 is Figure 1 the sectional view taken along A - A in

[0033] Figure 3 is Figure 1 the sectional view taken along B - B in, where the left air knife is on the left side and the right air knife is on the right side;

[0034] Figure 4 is Figure 3 the enlarged view at C in

[0035] Figure 5 is Figure 3 the enlarged view at D in

[0036] Figure 6 is Figure 1 the sectional view taken along B - B in, where the left air knife is on the right side and the right air knife is on the left side;

[0037] Figure 7 is Figure 6 the enlarged view at E in

[0038] Figure 8 is Figure 6 the enlarged view at F in

[0039] In the figure: 1, spinneret plate; 2, left air knife; 3, right air knife; 4, first card slot; 5, second card slot; 6, first card block; 7, second card block; 8, first groove; 9, second groove; 10, first adjusting bolt; 11, second adjusting bolt; 12, first installation groove; 13, second installation groove; 14, first pin hole; 15, second pin hole; 16, third pin hole; 17, fourth pin hole; 18, fifth pin hole; 19, sixth pin hole; 20, seventh pin hole; 21, eighth pin hole; 22, air gap. Specific implementation mode

[0040] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic way, so they only show the components related to the present invention.

[0041] Embodiment 1:

[0042] As Figure 1 , Figure 3 and Figure 6 shown, the present invention discloses a portable meltblown spinning component, including a spinneret plate 1. A groove is provided on one side of the outlet of the spinneret plate 1, and a triangular protrusion is provided at the center position of the groove, thereby dividing the groove into a first installation groove 12 and a second installation groove 13, and the protrusion forms two symmetrically arranged pointed end faces.

[0043] The left air knife 2 is installed in the first installation groove 12, and the right air knife 3 is installed in the second installation groove 13; or the left air knife 2 is horizontally rotated 180° and installed in the second installation groove 13, and the right air knife 3 is horizontally rotated 180° and installed in the first installation groove 12. The left air knife 2 and the right air knife 3 are both fixedly installed on the spinneret plate 1 through a plurality of locking bolts. An air gap 22 is formed between the left air knife 2, the right air knife 3 and the pointed end face.

[0044] A plurality of spaced-apart first card slots 4 are provided at the bottom of the first installation groove 12, and a plurality of spaced-apart second card slots 5 are provided at the bottom of the second installation groove 13. A plurality of spaced-apart first card blocks 6 are provided at the bottom of the left air knife 2, and a first groove 8 is formed between the first card blocks 6; a plurality of spaced-apart second card blocks 7 are provided at the bottom of the right air knife 3, and a second groove 9 is formed between the second card blocks 7.

[0045] As Figure 4 and Figure 5 shown, when the left air knife 2 is installed in the first installation groove 12 and the right air knife 3 is installed in the second installation groove 13, the first card block 6 abuts against the bottom of the first installation groove 12, so that the open ends of the first card slot 4 and the first groove 8 are connected; the second card block 7 abuts against the bottom of the second installation groove 13, so that the open ends of the second card slot 5 and the second groove 9 are connected; at this time, the left air knife 2 and the right air knife 3 are farther away from the pointed end face, and the width of the air gap 22 is larger.

[0046] As Figure 7 and Figure 8 shown, when the left air knife 2 is installed in the second installation groove 13 and the right air knife 3 is installed in the first installation groove 12, the first clamping block 6 is clamped to the second clamping groove 5, and the second clamping block 7 is clamped to the first clamping groove 4; at this time, the left air knife 2 and the right air knife 3 are closer to the tip end surface, and the width of the air gap 22 is smaller.

[0047] With the above settings, by swapping the positions of the left air knife 2 and the right air knife 3, the width of the air gap 22 can be changed. Moreover, the operation is simple, the cost is lower, and the applicable range is wider.

[0048] Embodiment 2:

[0049] Compared with Embodiment 1, the difference is that: as Figure 2 shown, a plurality of first adjusting bolts 10 and second adjusting bolts 11 arranged at intervals are installed on the outer groove walls of the first installation groove 12 and the second installation groove 13.

[0050] The first adjusting bolt 10 is threadedly connected to the outer groove wall of the first groove 8 or the second groove 9, and the end of its screw rod abuts against the left air knife 2 or the right air knife 3, and is used to drive the left air knife 2 or the right air knife 3 close to the tip end surface.

[0051] The second adjusting bolt 11 passes through the outer groove wall of the first groove 8 or the second groove 9 and is threadedly connected to the left air knife 2 or the right air knife 3, and is used to drive the left air knife 2 or the right air knife 3 away from the tip end surface.

[0052] When the left air knife 2 and the right air knife 3 are deformed due to long-term work in a high-temperature environment, they are reshaped by screwing the first adjusting bolt 10 or the second adjusting bolt 11, and their positions are corrected so that the air gap 22 meets the use requirements. With such a setting, compared with replacing the new left air knife 2 and right air knife 3, the cost is reduced.

[0053] Embodiment 3:

[0054] Compared with Embodiment 2, the difference is that: since the deformation amounts of the left air knife 2 and the right air knife 3 are small and the detection difficulty is large, the following design is made:

[0055] The bottom of the first installation groove 12 is drilled with a first pin hole 14 and a second pin hole 15 arranged from outside to inside, both of which are blind holes; the bottom of the second installation groove 13 is drilled with a third pin hole 16 and a fourth pin hole 17 arranged from outside to inside, both of which are blind holes; the left air knife 2 is provided with a fifth pin hole 18 and a sixth pin hole 19 arranged from outside to inside, both of which are through holes; the right air knife 3 is provided with a seventh pin hole 20 and an eighth pin hole 21 arranged from outside to inside, both of which are through holes.

[0056] When the left air knife 2 is installed in the first installation groove 12 and the right air knife 3 is installed in the second installation groove 13, the sixth pin hole 19 and the first pin hole 14 are coaxial, and the pin shaft is inserted into the coaxial interior of the sixth pin hole 19 and the first pin hole 14; the seventh pin hole 20 and the fourth pin hole 17 are coaxial, and the pin shaft is inserted into the coaxial interior of the seventh pin hole 20 and the fourth pin hole 17.

[0057] When the left air knife 2 is installed in the second installation groove 13 and the right air knife 3 is installed in the first installation groove 12, the fifth pin hole 18 and the third pin hole 16 are coaxial, and the pin shaft is inserted into the fifth pin hole 18 and the third pin hole 16; the eighth pin hole 21 and the second pin hole 15 are coaxial, and the pin shaft is inserted into the coaxial interior of the eighth pin hole 21 and the second pin hole 15.

[0058] By observing whether the pin shaft can be smoothly inserted into the pin holes on the spinneret plate 1, it can be determined whether the left air knife 2 or the right air knife 3 is deformed. When the left air knife 2 and the right air knife 3 are deformed, by screwing the first adjusting bolt 10 or the second adjusting bolt 11, the pin shaft can be smoothly inserted into the pin holes on the spinneret plate 1, and the adjustment operation can be completed.

[0059] Embodiment 4:

[0060] The present invention also corresponds to the above-mentioned Embodiment 3 and discloses an adjustment method for a portable meltblown spinning component, in which the left air knife 2 is installed in the first installation groove 12 and the right air knife 3 is installed in the second installation groove 13 as the initial state, including the following steps:

[0061] S1. Remove the pin shaft in the pin hole;

[0062] S2. Remove the locking bolt and take out the left air knife 2 and the right air knife 3;

[0063] S3. Rotate the left air knife 2 by 180° and install it in the second installation groove 13, and rotate the right air knife 3 horizontally by 180° and install it in the first installation groove;

[0064] S4. Insert the pin shafts into the fifth pin hole 18 and the eighth pin hole 21 respectively;

[0065] S5. If the pin shaft can be smoothly inserted into the third pin hole 16 or the second pin hole 15, execute step S7, otherwise execute step S6;

[0066] S6. Screw the first adjusting bolt 10 or the second adjusting bolt 11 to adjust the positions of the left air knife 2 or the right air knife 3 to make the fifth pin hole 18 and the third pin hole 16 coaxial, and the eighth pin hole 21 and the second pin hole 15 coaxial, so that the pin shaft can be smoothly inserted into the third pin hole 16 or the second pin hole 15;

[0067] S7. Lock the fastening bolt to fix the left air knife 2 and the right air knife 3 on the spinneret plate 1.

[0068] Through the above steps, the width of the air gap 22 can be quickly adjusted, saving the adjustment time.

[0069] When the left air knife 2 is installed in the second installation groove 13 and the right air knife 3 is installed in the first installation groove 12 in the initial state, performing the above adjustment operation can quickly install the left air knife 2 in the first installation groove 12 and quickly install the right air knife 3 in the second installation groove 13.

[0070] Inspired by the above ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A portable meltblown spinning component, including a spinneret plate (1), with a left air knife (2) and a right air knife (3) respectively installed on both sides of the pointed end surface at the center position, and an air gap (22) formed between them and the pointed end surface, characterized in that: By rotating the left air knife (2) and the right air knife (3) by 180° and interchanging their installation positions, the width of the air gap can be changed; On both sides of the pointed end surface of the spinneret plate (1), a first card slot (4) and a second card slot (5) are respectively provided; At the bottoms of the left air knife (2) and the right air knife (3), a first card block (6) and a second card block (7) are respectively provided; A first groove (8) is formed between the first card blocks (6); A second groove (9) is formed between the second card blocks (7); By interchanging the installation positions of the left air knife (2) and the right air knife (3), it is realized that the first groove (8) faces the first card slot (4), the second groove (9) faces the second card slot (5), or the first card block (6) is clamped to the second card slot (5), and the second card block (7) is clamped to the first card slot (4).

2. The portable meltblown spinning component according to claim 1, characterized in that: On both sides of the spinneret plate (1), a first adjusting bolt (10) and a second adjusting bolt (11) are installed; The first adjusting bolt (10) is used to drive the left air knife (2) or the right air knife (3) to approach the pointed end surface; The second adjusting bolt (11) is used to drive the left air knife (2) or the right air knife (3) to move away from the pointed end surface.

3. The portable meltblown spinning component according to claim 2, characterized in that: On both sides of the pointed end surface of the spinneret plate (1), a first installation groove (12) and a second installation groove (13) are respectively provided; The first card slot (4) and the second card slot (5) are respectively arranged at the bottoms of the first installation groove (12) and the second installation groove (13); The left air knife (2) and the right air knife (3) are respectively installed in the first installation groove (12) and the second installation groove (13); The first adjusting bolt (10) is threadedly connected to the outer groove wall of the first groove (8) or the second groove (9), and its end abuts against the left air knife (2) or the right air knife (3); The second adjusting bolt (11) passes through the outer groove wall of the first groove (8) or the second groove (9) and is threadedly connected to the left air knife (2) or the right air knife (3).

4. The portable meltblown spinning component according to claim 3, wherein: A first pin hole (14) and a second pin hole (15) are arranged in the first installation groove (12); A third pin hole (16) and a fourth pin hole (17) are arranged in the second installation groove (13); The left air knife (2) is provided with a fifth pin hole (18) and a sixth pin hole (19); The right air knife (3) is provided with a seventh pin hole (20) and an eighth pin hole (21); By switching the installation positions of the left air knife (2) and the right air knife (3), it is realized that the sixth pin hole (19) and the first pin hole (14) are coaxial, the seventh pin hole (20) and the fourth pin hole (17) are coaxial, or the fifth pin hole (18) and the third pin hole (16) are coaxial, and the eighth pin hole (21) and the second pin hole (15) are coaxial.

5. A method for adjusting a portable meltblown spinning component, using a portable meltblown spinning component as described in claim 4, wherein the first groove (8) facing the first card slot (4) and the second groove (9) facing the second card slot (5) are set as the initial state, and the method includes the following steps: S1. Remove the pin shaft in the pin hole; S2. Remove the left air knife (2) and the right air knife (3); S3. Horizontally rotate the left air knife (2) and the right air knife (3) by 180° and interchange their installation positions; S4. Insert the pin shafts into the fifth pin hole (18) and the eighth pin hole (21) respectively; S5. If the pin shafts can be smoothly inserted into the third pin hole (16) or the second pin hole (15), execute step S7; otherwise, execute step S6; S6. Rotate the first adjusting bolt (10) or the second adjusting bolt (11) to adjust the position of the left air knife (2) or the right air knife (3), so that the fifth pin hole (18) and the third pin hole (16) are coaxial, and the eighth pin hole (21) and the second pin hole (15) are coaxial, enabling the pin shafts to be smoothly inserted into the third pin hole (16) or the second pin hole (15); S7. Tighten the fastening bolts to fix the left air knife (2) and the right air knife (3) on the spinneret plate (1).

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