Spinning nozzle with adjustable spacing

Abstract

The present invention provides a spinning nozzle with adjustable spacing, comprising: a syringe and a nozzle, a syringe head is arranged at the bottom of the syringe, a nozzle nozzle hole is opened on the nozzle, the syringe head is fixedly connected in the nozzle nozzle hole, a mounting groove is opened near the discharge port of the nozzle, the mounting groove is communicated with the nozzle nozzle hole, and a nozzle hole adjustment mechanism is installed in the mounting groove. The beneficial effect of the present invention is: a plurality of adjustment nozzle holes are arranged on the adjustment block, and the adjustment rotating block is rotated, and the rotating block drives the adjustment block to rotate accordingly to adjust the spacing between the adjustment nozzle hole and the nozzle nozzle hole, and the adjustment nozzle holes of different diameters are adjusted to the corresponding position of the nozzle nozzle hole, so that the adjustment nozzle hole is communicated with the nozzle nozzle hole, so as to change the outlet aperture of the liquid sprayed from the adjustment nozzle hole, and obtain electrostatic spinning of different diameters, and the adjustment is fast and convenient and easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of electrostatic spinning equipment, and in particular to a spinning nozzle with adjustable spacing. Background Art

[0002] Electrospinning technology is a technology that allows polymer droplets to overcome surface tension under the action of a high-voltage electrostatic field to produce a jet stream. The stream is stretched and solidified during the jetting process and falls on the receiving screen to eventually form a spun fiber. It is currently the method that can directly and continuously prepare polymer nanofibers. In the electrospinning process, it is often necessary to obtain electrospinning of different diameters to meet application requirements. Therefore, it is often necessary to replace different types of nozzles in the electrospinning process, which is troublesome and affects production efficiency. At the same time, the need to prepare a variety of nozzles of different diameters and sizes undoubtedly increases production costs.

[0003] In the prior art, Chinese patent publication No. CN115449908B discloses an electrospinning nozzle device with adjustable spacing. The handle drives the rotating screw to press the adjusting pressure plate onto the movable isolation metal sheet, thereby changing the distance between the movable isolation metal sheet and the fixed isolation metal sheet to form liquid outlet apertures with different spacings. Although the liquid outlet aperture of the spinning nozzle can be adjusted, its spring is set in the liquid outlet aperture, which will hinder the ejection of the electrospinning liquid, and the liquid outlet aperture size of the spinning nozzle is difficult to control during adjustment, resulting in the liquid outlet aperture not meeting the design standards, affecting the electrospinning diameter of the production. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a spinning nozzle with adjustable spacing, which can solve the problem that the outlet aperture size of the spinning nozzle is difficult to control during adjustment, resulting in the outlet aperture not meeting the design standards and affecting the electrostatic spinning diameter produced.

[0005] The present invention provides the following technical solution: a spinning nozzle with adjustable spacing, comprising: a syringe and a nozzle, wherein a syringe head is arranged at the bottom of the syringe, a nozzle nozzle hole is arranged on the nozzle head, the syringe head is fixedly connected to the nozzle nozzle hole, a mounting groove is arranged on the nozzle head near the discharge port, the mounting groove is communicated with the nozzle nozzle hole, and a nozzle hole adjustment mechanism is installed in the mounting groove;

[0006] The spray hole adjustment mechanism includes an adjustment block and a rotating block installed on the outer wall of the adjustment block. The rotating block is rotatably connected in the installation groove. A plurality of adjustment spray holes are opened on the adjustment block at equal intervals along the circumferential direction. The adjustment spray holes correspond to the positions of the spray holes of the nozzle. The diameters of the plurality of adjustment spray holes are different. The size of the liquid outlet of the nozzle is adjusted by rotating the adjustment spray holes of different diameters to communicate with the nozzle holes of the nozzle.

[0007] A locking assembly is provided inside the nozzle, and the locking assembly is used to lock the position of the adjustment block;

[0008] A rotation adjustment component is arranged on the outside of the nozzle, and the rotation adjustment component is used to drive the rotation block to rotate.

[0009] As a preferred solution of the present invention, a reaming hole is provided at the top of the regulating nozzle hole on the regulating block, the diameter of the top of the reaming hole is larger than the diameter of the nozzle nozzle nozzle hole, a first sealing structure is provided at the top of the regulating block and located outside the reaming hole, and a second sealing structure is provided at the bottom of the regulating block and located outside the regulating nozzle hole.

[0010] As a preferred solution of the present invention, the locking assembly includes an arc-shaped plate and a plurality of plug rods fixedly connected to the bottom of the arc-shaped plate. A receiving groove is provided inside the nozzle and above the mounting groove. The arc-shaped plate is installed in the receiving groove. A through hole is provided between the receiving groove and the mounting groove for the plug rod to pass through. A plurality of fixed sockets for the plug rod to be inserted are provided on the top of the adjustment block.

[0011] As a preferred solution of the present invention, the locking assembly also includes a guide rod fixedly connected to the top of the arc plate, a guide hole communicating with the accommodating groove is opened at the top of the nozzle, and the top of the guide rod passes through the guide hole and is fixedly connected to a connecting rod.

[0012] As a preferred solution of the present invention, a return spring is sleeved between the top of the arc plate and the top of the interior of the accommodating groove and located on the outside of the connecting rod.

[0013] As a preferred solution of the present invention, both sides of the top of the fixed socket are provided with offset adjustment grooves expanding outward, a guiding inclined surface is provided between the bottom of the offset adjustment groove and the fixed socket, and a ball is embedded in the bottom of the insertion rod.

[0014] As a preferred solution of the present invention, the adjusting block is rotatably connected to the rotating block, a groove is provided at the edge of the bottom end of the adjusting block, a fixing bar placed in the groove is fixedly connected to the bottom end of the rotating block, a guide ring is fixedly connected inside the fixing bar and inside the rotating block, an arc-shaped guide hole is provided on the adjusting block for the guide ring to pass through, and arc springs are sleeved on both sides of the groove between the fixing bar and the outside of the guide ring.

[0015] As a preferred solution of the present invention, the rotation adjustment component includes a gear, a rotating shaft is fixedly connected inside the gear, both ends of the rotating shaft are rotatably connected to a fixed seat, the fixed seat is fixedly connected to the outside of the nozzle, an outer gear ring is fixedly sleeved on the outside of the rotating block, and part of the outer gear ring extends to the outside of the mounting groove and meshes with the gear.

[0016] As a preferred solution of the present invention, the top end of the rotating shaft extends to the outside of the fixed seat and is fixedly connected to a worm wheel. A worm meshing with the worm wheel is provided on one side of the worm wheel. A driving rod is fixedly connected inside the worm wheel, and a knob is fixedly connected to one end of the driving rod.

[0017] As a preferred solution of the present invention, it also includes a linkage component, which includes a connecting plate fixedly connected to the connecting rod, one end of the connecting plate is fixedly connected to a driving plate, and a driving member is installed on the top of the driving plate.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention provides a plurality of regulating spray holes on the regulating block. By rotating the regulating rotating block, the rotating block drives the regulating block to rotate accordingly, so as to adjust the spacing between the regulating spray holes and the spray holes of the nozzle, and adjust the regulating spray holes of different diameters to the corresponding positions of the spray holes of the nozzle, so that the regulating spray holes are connected with the spray holes of the nozzle, so as to change the aperture of the liquid sprayed from the regulating spray holes, and obtain electrostatic spinning with different diameters. The adjustment is fast and convenient, and the use is convenient;

[0020] 2. The present invention provides a locking assembly. After the adjusting block is adjusted to the right position, the arc plate drives the plug rod to move downward, so that the plug rod is inserted into the fixed socket to achieve the locking of the adjusting block, so as to avoid the position deviation of the adjusting block during use, which affects the spraying of the electrostatic spinning solution. The two sides of the top of the fixed socket are provided with offset adjustment grooves expanding outward. When there is a small misalignment between the plug rod and the fixed socket, the bottom end of the plug rod is placed in the offset adjustment groove. As the plug rod continues to move downward, the plug rod slides on the side wall of the offset adjustment groove to push the adjusting block to adjust the position, so that the plug rod can be smoothly inserted into the fixed socket to ensure that the position of the adjustment nozzle is accurately adjusted. When the plug rod is separated from the fixed socket and the lock is released, the adjusting block is quickly reset by the action of the arc spring to ensure that the adjusting block is in the initial position after each unlocking, which is conducive to the subsequent locking and fixing use.

[0021] 3. The linkage assembly provided in the present invention can drive the connecting rods on all the spinning nozzles to move together, so as to unlock the adjustment blocks in all the spinning nozzles together. In addition, the worm gears on multiple spinning nozzles are connected by the same driving rod, so as to adjust the liquid outlet apertures of all the spinning nozzles at one time, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the spinning nozzle with adjustable spacing;

[0023] Figure 2 Schematic diagram of the internal structure of the nozzle;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the nozzle adjustment mechanism Figure 1 ;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the nozzle adjustment mechanism Figure 2 ;

[0026] Figure 5It is a schematic diagram of the longitudinal section structure of the nozzle;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the nozzle;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the locking component;

[0029] Figure 8 It is a schematic structural diagram of another embodiment of the present invention.

[0030] In the figure: 1, syringe; 11, syringe head; 2, nozzle; 21, nozzle nozzle orifice; 22, mounting groove; 221, avoidance groove; 23, receiving groove; 24, through hole; 3, nozzle orifice adjustment mechanism; 31, adjustment block; 311, nozzle orifice adjustment; 312, expansion hole; 313, fixed jack; 314, offset adjustment groove; 315, groove; 32, rotating block; 321, fixing strip; 33, outer gear ring; 34, first sealing structure; 35, first Two sealing structures; 36, guide ring; 37, arc spring; 4, locking assembly; 41, arc plate; 42, plug rod; 421, ball; 43, guide rod; 44, connecting rod; 45, reset spring; 5, rotation adjustment assembly; 51, gear; 52, rotating shaft; 53, fixing seat; 54, worm gear; 55, driving rod; 56, worm; 57, knob; 6, linkage assembly; 61, connecting plate; 62, driving plate; 63, driving member. DETAILED DESCRIPTION

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0033] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0034] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0035] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0036] like Figures 1 to 7As shown, a spinning nozzle with adjustable spacing includes: a syringe 1 and a nozzle 2, a syringe head 11 is arranged at the bottom of the syringe 1, a nozzle nozzle hole 21 is opened on the nozzle 2, the syringe head 11 is fixedly connected to the nozzle nozzle hole 21, the syringe 1 is used to inject electrospinning liquid into the nozzle nozzle hole 21 of the nozzle 2 through the syringe head 11, a mounting groove 22 is opened on the nozzle 2 near the discharge port, the mounting groove 22 is communicated with the nozzle nozzle hole 21, a nozzle hole adjustment mechanism 3 is installed in the mounting groove 22, the nozzle hole adjustment mechanism 3 includes an adjustment block 31 and a rotating block 32 installed on the outer wall of the adjustment block 31, the rotating block 32 is rotatably connected to the mounting groove 22, and the adjustment block 31 is evenly spaced along the circumferential direction. A plurality of adjusting spray holes 311 are provided, and the positions of the adjusting spray holes 311 and the nozzle spray holes 21 correspond to each other. The diameters of the plurality of adjusting spray holes 311 are different. The adjusting spray holes 311 of different diameters are rotated and adjusted to communicate with the nozzle spray holes 21 to adjust the size of the liquid outlet of the nozzle 2. The adjusting rotating block 32 is rotated and adjusted, and the rotating block 32 drives the adjusting block 31 to rotate accordingly to adjust the spacing between the adjusting spray holes 311 and the nozzle spray holes 21. The adjusting spray holes 311 of different diameters are adjusted to the corresponding positions of the nozzle spray holes 21, so that the adjusting spray holes 311 communicate with the nozzle spray holes 21 to change the aperture of the liquid outlet sprayed from the adjusting spray holes 311, and obtain electrostatic spinning of different diameters. The adjustment is fast and convenient, and the use is convenient.

[0037] In this embodiment, the number and diameter of the adjusting nozzles 311 on the adjusting block 31 can be designed according to demand. An indicator mark is provided on the outer wall of the adjusting block 31 corresponding to the adjusting nozzle 311, and an indicator arrow is provided on the outer wall of the nozzle 2 at the mounting groove 22. The corresponding indications of the indicator mark and the indicator arrow facilitate observation and adjustment of the adjusting nozzle 311 of suitable diameter size to the nozzle nozzle 21, so as to quickly obtain electrospinning of different diameter sizes.

[0038] In this embodiment, if Figure 3 As shown, the top end of the regulating nozzle 311 is provided with an expansion hole 312 on the regulating block 31, and the diameter of the top end of the expansion hole 312 is larger than the diameter of the nozzle nozzle 21. When the regulating nozzle 311 corresponds to the nozzle nozzle 21 through the setting of the expansion hole 312, there will be no obstruction between the expansion hole 312 and the nozzle nozzle 21. On the other hand, the electrospinning liquid flowing into the nozzle nozzle 21 gradually passes through the expansion hole 312 and enters the regulating nozzle 311 with a relatively small diameter, which is equivalent to forming a necking design between the nozzle nozzle 21 and the regulating nozzle 311, which helps to fill the regulating nozzle 311 with electrospinning and avoids gaps that affect the diameter of the electrospinning formed.

[0039] In this embodiment, if Figure 3 and Figure 4As shown, a first sealing structure 34 is provided at the top of the adjusting block 31 and located outside the expansion hole 312, and a second sealing structure 35 is provided at the bottom of the adjusting block 31 and located outside the adjusting nozzle hole 311. The first sealing structure 34 is used to close the gap between the nozzle hole 21 and the expansion hole 312, and the second sealing structure 35 is used to close the gap between the adjusting nozzle hole 311 and the nozzle hole 21, so as to improve the sealing performance and avoid leakage.

[0040] In this embodiment, if Figure 3 , Figure 5 , Figure 6 and Figure 7 A locking assembly 4 is provided inside the nozzle 2, and the locking assembly 4 is used to lock the position of the adjustment block 31. The locking assembly 4 includes an arc plate 41 and a plurality of plug rods 42 fixedly connected to the bottom of the arc plate 41. A receiving groove 23 is provided inside the nozzle 2 and above the mounting groove 22. The arc plate 41 is installed in the receiving groove 23. A through hole 24 is provided between the receiving groove 23 and the mounting groove 22 for the plug rod 42 to pass through. A plurality of fixed plug holes 313 are provided on the top of the adjustment block 31 for the plug rod 42 to be inserted. When the adjustment block 31 is in place, the arc plate 41 is moved upward in the accommodating groove 23, so that the arc plate 41 drives the insertion rod 42 to move synchronously, and the insertion rod 42 is separated from the fixed socket 313 and moved into the through hole 24, thereby releasing the locking effect on the adjustment block 31. After the adjustment block 31 is adjusted into place, the arc plate 41 drives the insertion rod 42 to move downward, so that the insertion rod 42 is inserted into the fixed socket 313, thereby locking the adjustment block 31, avoiding the position deviation of the adjustment block 31 during use, which affects the ejection of the electrospinning solution.

[0041] In this embodiment, the number of the insert rods 42 and the fixed insert holes 313 is the same as the number of the regulating spray holes 311 on the regulating block 31 , and the fixed insert hole 313 is disposed between two adjacent regulating spray holes 311 .

[0042] In this embodiment, if Figure 7 As shown, the locking assembly 4 also includes a guide rod 43 fixedly connected to the top of the arc plate 41, and a guide hole communicating with the receiving groove 23 is opened at the top of the nozzle 2. The top of the guide rod 43 passes through the guide hole and is fixedly connected with a connecting rod 44. When in use, the connecting rod 44 is moved upward so that the connecting rod 44 moves the guide rod 43 in the guide hole to drive the arc plate 41 to move in the receiving groove 23, thereby realizing the rapid unlocking of the adjustment block 31.

[0043] In this embodiment, if Figure 5As shown, a return spring 45 is sleeved between the top of the arc plate 41 and the top of the inside of the accommodating groove 23 and on the outside of the connecting rod 44. When the adjusting block 31 is unlocked, the arc plate 41 moves upward in the accommodating groove 23 to compress the return spring 45. When the adjusting block 31 is locked, the return spring 45 is used to quickly move the arc plate 41 downward in the accommodating groove 23 to lock it.

[0044] In this embodiment, if Figure 3 and Figure 4 As shown, both sides of the top of the fixed socket 313 are provided with offset adjustment grooves 314 expanding outward, a guiding inclined surface is provided between the bottom end of the offset adjustment groove 314 and the fixed socket 313, a ball 421 is embedded and installed at the bottom end of the insertion rod 42, the adjustment block 31 is rotatably connected with the rotating block 32, a groove 315 is provided at the bottom end of the adjustment block 31 at the edge, a fixing bar 321 placed in the groove 315 is fixedly connected to the bottom end of the rotating block 32, the fixing bar 321 and the rotating block 32 are integrally formed, a guide ring 36 is fixedly connected in the fixing bar 321 and located in the rotating block 32, an arc guide hole for the guide ring 36 to pass through is provided on the adjustment block 31, an arc spring 37 is sleeved on both sides of the groove 315 and between the fixing bar 321 and located on the outside of the guide ring 36, When there is a small misalignment between 42 and the fixed socket 313, the bottom end of the insertion rod 42 is placed in the offset adjustment groove 314. As the insertion rod 42 continues to move downward, the insertion rod 42 slides on the side wall of the offset adjustment groove 314 to push the adjustment block 31 to adjust its position, so that the insertion rod 42 can be smoothly inserted into the fixed socket 313 to ensure that the position of the adjustment nozzle 311 is accurately adjusted. The ball 421 set at the bottom end of the insertion rod 42 reduces the friction force of the insertion rod 42 moving in the fixed socket 313, which helps the adjustment block 31 to adjust its position more smoothly. When the insertion rod 42 is separated from the fixed socket 313 and the lock is released, the adjustment block 31 is quickly reset by the action of the arc spring 37 to ensure that the adjustment block 31 is in the initial position after each unlocking, which helps the subsequent locking and fixing use.

[0045] In this embodiment, if Figure 1 and Figure 3As shown, a rotation adjustment component 5 is provided on the outside of the nozzle 2, and the rotation adjustment component 5 is used to drive the rotation block 32 to rotate. The rotation adjustment component 5 includes a gear 51, and a rotating shaft 52 is fixedly connected inside the gear 51. Both ends of the rotating shaft 52 are rotatably connected to a fixed seat 53, and the fixed seat 53 is fixedly connected to the outside of the nozzle 2. The outer side of the rotating block 32 is fixedly sleeved with an outer gear ring 33, and an avoidance groove 221 for avoiding the position of the outer gear ring 33 is opened in the installation groove 22. Part of the outer gear ring 33 extends to the outside of the installation groove 22 and meshes with the gear 51. The top of the rotating shaft 52 extends to the outside of the fixed seat 53 and is fixedly connected to a worm gear 54. One side of the worm gear 54 is provided A worm 56 meshing with it is arranged, and the worm 56 can be fixed on the equipment frame through a bearing seat. A driving rod 55 is fixedly connected inside the worm 56, and a knob 57 is fixedly connected to one end of the driving rod 55. When in use, the driving rod 55 is driven to rotate by turning the knob 57, and the driving rod 55 drives the worm 56 to rotate, and the worm 56 drives the worm wheel 54 meshing with it to rotate, and the worm wheel 54 drives the rotating shaft 52 and the gear 51 to rotate, and the gear 51 drives the outer gear ring 33 meshing with it to rotate, and the outer gear ring 33 drives the rotating block 32 and the adjusting block 31 inside it to rotate synchronously, so as to change the outlet aperture of the adjusting nozzle 311, which is convenient to operate and highly practical.

[0046] This embodiment is basically the same as embodiment 1. Figure 8 As shown, the difference lies in that it also includes a linkage component 6, the linkage component 6 includes a connecting plate 61 fixedly connected to the connecting rod 44, one end of the connecting plate 61 is fixedly connected to a driving plate 62, and the connecting rods 44 on the spinning nozzles in multiple embodiments 1 are all connected to the same driving plate 62 through the connecting plate 61, and a driving member 63 is installed on the top of the driving plate 62. The driving member 63 can be a telescopic cylinder, a motor screw module, etc., and it only needs to realize the longitudinal lifting and lowering movement of the driving plate 62. The driving member 63 is installed on the equipment frame, and is used to drive the driving plate 62 to lift and lower, thereby driving the connecting rods 44 on all the spinning nozzles to move together through the connecting plate 61, which is used to unlock the adjustment blocks 31 in all the spinning nozzles together. In addition, the worm gears 56 on the spinning nozzles in multiple embodiments 1 are connected through the same driving rod 55, which is used to adjust the liquid outlet apertures of all the spinning nozzles at one time, thereby greatly improving work efficiency.

[0047] Implementation scheme: When in use, the connecting rod 44 is moved upward, so that the connecting rod 44 moves the guide rod 43 in the guide hole to drive the arc plate 41 to move upward in the receiving groove 23, so that the arc plate 41 drives the insertion rod 42 to move synchronously, and the insertion rod 42 is separated from the fixed insertion hole 313 and moved into the through hole 24, thereby releasing the locking effect on the adjustment block 31. Then, the operator rotates the knob 57 to drive the driving rod 55 to rotate, and the driving rod 55 drives the worm 56 to rotate, and the worm 56 drives the worm wheel 54 meshing therewith to rotate, and the worm wheel 54 drives the rotating shaft 52 and the gear The gear 51 rotates, and the gear 51 drives the outer gear ring 33 meshing therewith to rotate. The outer gear ring 33 drives the rotating block 32 and the adjusting block 31 inside it to rotate synchronously, and the adjusting spray hole 311 of suitable diameter is adjusted to the nozzle spray hole 21, so that the adjusting spray hole 311 is communicated with the nozzle spray hole 21. After the adjusting block 31 is adjusted to the right position, the arc plate 41 drives the plug rod 42 to move downward through the connecting rod 44, so that the plug rod 42 is inserted into the fixed plug hole 313, so as to realize the locking of the adjusting block 31, so as to avoid the position deviation of the adjusting block 31 during use, which affects the spraying of the electrospinning solution. When there is a small misalignment between the rod 42 and the fixed socket 313, the bottom end of the rod 42 is placed in the offset adjustment groove 314. As the rod 42 continues to move downward, the rod 42 slides on the side wall of the offset adjustment groove 314 to push the adjustment block 31 to adjust its position, so that the rod 42 can be smoothly inserted into the fixed socket 313. When the rod 42 is separated from the fixed socket 313 and the lock is released, the adjustment block 31 is quickly reset through the action of the arc spring 37 to ensure that the adjustment block 31 is in the initial position each time the lock is released, which is helpful for the subsequent locking and fixing use. When the liquid outlet apertures of multiple spinning nozzles are adjusted, the driving plate 62 can be driven to move up and down through the driving member 63, thereby driving the connecting rods 44 on all the spinning nozzles to move together through the connecting plate 61, so as to unlock the adjustment blocks 31 in all the spinning nozzles together. In addition, the worm gears 56 on the multiple spinning nozzles are connected by the same driving rod 55, which is used to adjust the liquid outlet apertures of all the spinning nozzles at one time, thereby greatly improving work efficiency. The present invention facilitates the adjustment of the liquid outlet aperture of the spinning nozzle to obtain electrostatic spinning of different diameters, and the adjustment is quick and convenient and easy to use.

[0048] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A spinning nozzle with adjustable spacing, characterized in that: It comprises: a syringe and a nozzle, wherein a syringe head is arranged at the bottom of the syringe, a nozzle nozzle hole is arranged on the nozzle head, the syringe head is fixedly connected to the nozzle nozzle hole, a mounting groove is arranged near the discharge port on the nozzle head, the mounting groove is communicated with the nozzle nozzle hole, and a nozzle hole adjustment mechanism is installed in the mounting groove; The spray hole adjustment mechanism includes an adjustment block and a rotating block installed on the outer wall of the adjustment block. The rotating block is rotatably connected in the installation groove. A plurality of adjustment spray holes are opened on the adjustment block at equal intervals along the circumferential direction. The adjustment spray holes correspond to the positions of the spray holes of the nozzle. The diameters of the plurality of adjustment spray holes are different. The size of the liquid outlet of the nozzle is adjusted by rotating the adjustment spray holes of different diameters to communicate with the nozzle holes of the nozzle. A locking assembly is provided inside the nozzle, and the locking assembly is used to lock the position of the adjustment block; A rotation adjustment component is arranged outside the nozzle, and the rotation adjustment component is used to drive the rotation block to rotate; The locking assembly includes an arc-shaped plate and a plurality of plug rods fixedly connected to the bottom of the arc-shaped plate. A receiving groove is provided inside the nozzle and above the mounting groove. The arc-shaped plate is installed in the receiving groove. A through hole for the plug rod to pass through is provided between the receiving groove and the mounting groove. A plurality of fixed plug holes for the plug rod to be inserted are provided on the top of the adjustment block. The locking assembly also includes a guide rod fixedly connected to the top of the arc plate, a guide hole communicating with the receiving groove is opened at the top of the nozzle, the top of the guide rod passes through the guide hole and is fixedly connected to a connecting rod; a return spring is sleeved between the top of the arc plate and the top of the receiving groove and located on the outside of the connecting rod; The two sides of the top of the fixed socket are provided with offset adjustment grooves expanding outwards, a guiding inclined surface is provided between the bottom end of the offset adjustment groove and the fixed socket, and a ball is embedded and installed at the bottom end of the insertion rod.

2. A spinning nozzle with adjustable spacing according to claim 1, characterized in that: A reaming hole is provided at the top of the regulating spray hole on the regulating block, the diameter of the top of the reaming hole is larger than the diameter of the spray hole of the nozzle, a first sealing structure is provided at the top of the regulating block and outside the reaming hole, and a second sealing structure is provided at the bottom of the regulating block and outside the regulating spray hole.

3. The spinning nozzle with adjustable spacing according to claim 1, characterized in that: The adjusting block is rotatably connected to the rotating block, a groove is provided at the edge of the bottom end of the adjusting block, a fixing strip placed in the groove is fixedly connected to the bottom end of the rotating block, a guide ring is fixedly connected inside the fixing strip and inside the rotating block, an arc-shaped guide hole is provided on the adjusting block for the guide ring to pass through, arc-shaped springs are sleeved on both sides of the groove between the fixing strip and outside the guide ring.

4. The spinning nozzle with adjustable spacing according to claim 1, characterized in that: The rotation adjustment component includes a gear, a rotating shaft is fixedly connected inside the gear, both ends of the rotating shaft are rotatably connected to a fixed seat, the fixed seat is fixedly connected to the outside of the nozzle, an outer gear ring is fixedly sleeved on the outside of the rotating block, and part of the outer gear ring extends to the outside of the installation groove and meshes with the gear.

5. The spinning nozzle with adjustable spacing according to claim 4, characterized in that: The top end of the rotating shaft extends to the outside of the fixing seat and is fixedly connected with a worm wheel. A worm meshing with the worm wheel is arranged on one side of the worm wheel. A driving rod is fixedly connected inside the worm wheel, and a knob is fixedly connected to one end of the driving rod.

6. The spinning nozzle with adjustable spacing according to claim 1, characterized in that: It also includes a linkage component, which includes a connecting plate fixedly connected to the connecting rod, one end of the connecting plate is fixedly connected to a driving plate, and a driving member is installed on the top of the driving plate.

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