CN210590600U - Novel micro-injection pump - Google Patents
Novel micro-injection pump Download PDFInfo
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- CN210590600U CN210590600U CN201921584585.0U CN201921584585U CN210590600U CN 210590600 U CN210590600 U CN 210590600U CN 201921584585 U CN201921584585 U CN 201921584585U CN 210590600 U CN210590600 U CN 210590600U
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- fixing seat
- cartridge
- injection
- seat
- buckle
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Abstract
The utility model provides a novel micro-injection pump, including injection cartridge case, injection piston, lead screw device and motor, motor drive lead screw device promotes injection piston and is the linear motion in the injection cartridge case, lead screw device includes the front end fixing base, the injection cartridge case is pressed into cartridge case fixing base and is fixed, the bottom both sides of cartridge case fixing base are provided with two Y direction locating beams and an X direction locating beam respectively, the cartridge case fixing base is through imbedding two Y direction locating beams and an X direction locating beam into the recess that the front end fixing base corresponds and with front end fixing base chucking connection; the cartridge case fixing seat and the front end fixing seat are fixedly connected through a quick fixing buckle. The utility model discloses a novel micro-injection pump adopts the mode of multi-direction location, and it is quick to have simple to operate, and stable firm grade advantage to quick fixed buckle can realize the function of quick reloading cylinder, and the instrument of exempting from both removable cylinder, and the continuity, the uniformity that three d printed are guaranteed to the very big limit.
Description
Technical Field
The utility model relates to an electrostatic spinning and electrostatic biomaterial 3D print technical field, specifically speaking relates to a novel micro-injection pump.
Background
With the popularization of 3d printing technology for biological materials, higher requirements are made on printing precision, which means that the medicine injection pump also needs to improve the supply precision. The existing injection pump basically adopts a motor to directly connect a lead screw, a needle cylinder is pressed on a support, a piston of the needle cylinder is contacted with a lead screw nut, the motor drives the lead screw to rotate, and the lead screw extrudes the piston of the needle cylinder to carry out micro-output on liquid medicine. The controller calculates the flow rate according to the sectional area of the syringe and the movement amount of the piston in unit time, and only the movement speed of the piston needs to be set on the controller to set the flow rate speed.
The micro-injection pump is mainly applied to raw material supply of an electrostatic spinning machine, the conventional micro-injection pump is simple in structure, coarse ores do not avoid factors influencing injection precision, the outer wall of a syringe cylinder of the injector is directly pressed for fixing, so that the compression part of the syringe cylinder is deformed, the injection flow is not matched with the set flow after a piston reaches the compression part, and errors are caused.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a novel micro-injection pump which has the advantages of convenience in installation, stability and firmness, and avoids the deformation of a pressed part of a syringe of an injector and the inconsistency of the actual liquid outlet flow and the set flow caused by the shaking of the syringe in the injection process.
In order to solve the technical problem, the utility model provides a novel micro-injection pump, including injection cartridge case, injection piston, lead screw device and motor, the injection piston is inserted in the injection cartridge case with sliding, the motor drive the lead screw device promote the injection piston do linear motion in the injection cartridge case, the lead screw device includes the front end fixing base, the injection cartridge case is pressed into the cartridge case fixing base and is fixed, two Y direction locating beams and one X direction locating beam are respectively arranged on two sides of the bottom of the cartridge case fixing base, the cartridge case fixing base is through imbedding two Y direction locating beams and one X direction locating beam into the corresponding recess of the front end fixing base and tightly connected with the front end fixing base; the cartridge case fixing seat and the front end fixing seat are fixedly connected through a quick fixing buckle.
The contact surface of the cartridge holder and the injection cartridge is an encircling arc surface.
The cartridge case fixing seat is provided with a clamping groove, and a cartridge case flange of the injection cartridge case is embedded into the clamping groove for fixing.
The length directions of the two Y-direction positioning beams are the radial directions of the cartridge holder fixing seats; the length direction of the X-direction positioning beam is the axial direction of the cartridge holder; the two side faces of the cartridge fixing seat are provided with Z-direction fixing buckle mounting holes, and the hole depth direction of the Z-direction fixing buckle mounting holes is the radial direction of the cartridge fixing seat.
The quick fixing buckle comprises an upper buckle seat and a lower buckle seat, the upper buckle seat is fixedly connected to the cartridge fixing seat through a screw and a Z-direction fixing buckle mounting hole close to one side of the Y-direction positioning beam, the upper buckle seat is provided with a hook, the lower buckle seat is connected to the front end fixing seat through a screw, the lower buckle seat is axially connected with a pressing handle, the pressing handle is rotatably connected with a U-shaped hook, the U-shaped hook is sleeved on the hook, and the U-shaped hook is tensioned through the pressing handle; the fastening direction of the quick fixing buckle is vertical to the length direction of the Y-direction positioning beam.
The motor is in driving connection with the screw device through a synchronous belt wheel with a reduction ratio.
The screw rod device further comprises a rear end fixing seat, a base, a screw rod, a moving block, a sliding rod fixing seat and a pushing block; the moving block is sleeved on the lead screw and the sliding rod; two ends of the screw rod are respectively connected to the rear end fixing seat and the front end fixing seat; two ends of the sliding rod are respectively connected to the rear end fixing seat and the sliding rod fixing seat; the rear end fixing seat is connected to one end of the base through a screw, and the front end fixing seat and the sliding rod fixing seat are connected to the other end of the base through screws; the pushing block is connected to the moving block through screws and is in contact with a handle of the injection piston.
The synchronous belt wheel comprises a driving wheel, a transmission belt and a driven wheel; the driving wheel is connected with a rotating shaft of the motor, the motor is connected to a motor base, and the motor base is connected to the rear end fixing base; the driven wheel is in transmission connection with the driving wheel through the transmission belt, and the driven wheel is connected with the screw rod.
Compared with the prior art, the novel micro-injection pump has the following beneficial effects:
1. the utility model discloses owing to adopted the mode of the multi-direction location of quick fixed buckle, X direction locating beam, Y direction locating beam on the cartridge case fixing base, it is quick to have simple to operate, and stable firm advantage to quick fixed buckle can realize the function of quick reloading cylinder, avoids the instrument both removable cylinder, and the continuity, the uniformity that three d printed are guaranteed to the very big limit.
2. The utility model sets the contact surface of the cartridge fixing seat and the injection cartridge as the encircling cambered surface, so that the cartridge fixing seat adopts the design of integrally encircling the needle cylinder, the whole force of the needle cylinder is uniform, the motion sectional area of the piston can not be changed under any condition, and the stable liquid medicine output is always ensured; and the needle cylinder is more tightly fixed, so that displacement in any direction is avoided, and the liquid medicine output precision is also ensured.
3. The utility model discloses owing to adopt the accurate synchronous pulley system that has the reduction ratio to carry out the speed reduction transmission between motor and the lead screw, such structure has improvement resolution ratio, reduces the control error because lose pulse quantity and cause.
Drawings
The novel micro syringe pump of the present invention is described in further detail below with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic bottom view of the present invention.
Fig. 3 is a schematic view of the structure of the right side of the present invention.
Fig. 4 is a schematic perspective view of the present invention.
Fig. 5 is another schematic perspective view of the present invention.
Fig. 6 is a schematic front view of the cartridge holder of the present invention.
The reference numerals are explained below.
An injection cartridge 1, a cartridge flange 1-1, an injection piston 2, a handle 2-1, a lead screw 3, a front end fixing seat 3-1, a rear end fixing seat 3-2, a base 3-3, a lead screw 3-4, a moving block 3-5, a slide bar 3-6, a slide bar fixing seat 3-7, a pushing block 3-8, a motor 4, a rotating shaft 4-1, a motor seat 4-2, a cartridge fixing seat 5, a surrounding arc surface 5-1, a Z-direction fixing buckle mounting hole 5-2, a Y-direction positioning beam 5-3, an X-direction positioning beam 5-4, a clamping groove 5-5, a quick fixing buckle 6, an upper buckle seat 6-1, a lower buckle seat 6-2, a hook 6-3, a U-shaped hook 6-4, a pressing handle 6-5, a synchronous belt wheel 7, a driving wheel 7-1, a driving wheel 7-, A transmission belt 7-2 and a driven wheel 7-3.
Detailed Description
As shown in fig. 1-6, the utility model provides a novel micro-injection pump, which comprises an injection cartridge 1, an injection piston 2, a lead screw device 3 and a motor 4, the injection piston 2 is slidably inserted into the injection cartridge 1, the motor 4 drives the lead screw device 3 to push the injection piston 2 to make a linear motion in the injection cartridge 1, the screw device 3 comprises a front end fixing seat 3-1, the injection cartridge 1 is pressed into the cartridge fixing seat 5 for fixing, two Y-direction positioning beams 5-3 and an X-direction positioning beam 5-4 are respectively arranged at two sides of the bottom of the cartridge holder 5, the cartridge holder 5 is formed by embedding two Y-direction positioning beams 5-3 and one X-direction positioning beam 5-4 into corresponding grooves of the front end holder 3-1 and tightly clamping and connecting the front end holder 3-1; the cartridge holder 5 and the front end holder 3-1 are fixedly connected through a quick fixing buckle 6. The contact surface of the cartridge fixing seat 5 and the injection cartridge 1 is an encircling arc surface 5-1; the cartridge fixing seat 5 is provided with a clamping groove 5-5, and a cartridge flange 1-1 of the injection cartridge 1 is embedded into the clamping groove 5-5 for fixing.
This embodiment has redesigned injection cartridge case 1's mounting fixture according to the shape of injection cartridge case 1, the contact surface of cartridge case fixing base 5 and injection cartridge case 1 is embracing formula cambered surface 5-1, embrace formula cambered surface 5-1 and injection cartridge case 1 and just laminate, the cylinder is plastics, it can slightly warp to press into cartridge case fixing base 5, but there is not other big influence, adopt the design of wholly embracing the cylinder, make injection cartridge case 1 whole atress even, no matter injection piston 2's motion sectional area can not change under any circumstance, guarantee stable liquid medicine output all the time, adopted the design of wholly embracing simultaneously, injection cartridge case 1's fixed is inseparabler, can not have the displacement of any direction, liquid medicine output accuracy has also been guaranteed. The cartridge holder 5 is detachably fixed on the front end holder 3-1 of the screw device 3 through the quick fixing buckle 6, and has the function of quickly replacing the syringe, so that tools are not needed, and the syringe can be replaced. And the continuity and consistency of three-d printing are ensured to the utmost extent. The two Y-direction positioning beams 5-3 and the X-direction positioning beam 5-4 arranged at the bottom of the cartridge fixing seat 5 are combined to form multidirectional positioning, and finally, the final positioning is carried out by using the quick fixing buckle.
Various modifications of the present embodiment will be described in detail below.
As shown in fig. 6, the length directions of two Y-direction positioning beams 5-3 at the bottom of the cartridge holder 5 are the radial directions of the cartridge holder 5, the length direction of the X-direction positioning beam 5-4 is the axial direction of the cartridge holder 5, and the two Y-direction positioning beams 5-3 and the X-direction positioning beam 5-4 are square bodies.
In the embodiment, when the syringe is embedded into a corresponding groove on the front-end fixing seat 3-1, the two Y-direction positioning beams 5-3 can prevent the cartridge fixing seat 5 from shaking along the axial direction, and the X-direction positioning beam 5-4 can prevent the cartridge fixing seat 5 from shaking along the radial direction, so that the cartridge fixing seat 5 is clamped in the X direction and the Y direction, displacement in the X direction and the Y direction is avoided, the liquid medicine output precision is ensured, and the phenomenon that the actual liquid outlet flow is inconsistent with the set flow due to the shaking of the syringe is avoided.
As shown in fig. 1 to 6, Z-direction fixing buckle mounting holes 5-2 are formed in two side surfaces of the cartridge holder 5, and a hole depth direction of the Z-direction fixing buckle mounting holes 5-2 is a radial direction of the cartridge holder 5; the quick fixing buckle 6 comprises an upper buckle seat 6-1 and a lower buckle seat 6-2, the upper buckle seat 6-1 is fixedly connected to the cartridge holder 5 through a screw and a Z-direction fixing buckle mounting hole 5-2 close to one side of the Y-direction positioning beam 5-3, the upper buckle seat 6-1 is provided with a hook 6-3, the lower buckle seat 6-2 is connected to the front end holder 3-1 through a screw, the lower buckle seat 6-2 is axially connected with a pressing handle 6-5, the pressing handle 6-5 is rotatably connected with a U-shaped hook 6-4, the U-shaped hook 6-4 is sleeved on the hook 6-3, and the U-shaped hook 6-4 is tensioned through the pressing handle 6-5; the fastening direction of the quick fixing buckle 6 is vertical to the length direction of the Y-direction positioning beam 5-3.
According to the embodiment, the quick fixing buckle 6 and the Z-direction fixing buckle mounting hole 5-2 are used for fixing the medicine cartridge fixing seat 5 on the front end fixing seat 3-1 and clamping the medicine cartridge fixing seat 5 in the Z direction, so that displacement in the Z direction is avoided, the output accuracy of liquid medicine is ensured, and the phenomenon that the actual liquid outlet flow rate is inconsistent with the set flow rate due to the fact that the needle cylinder shakes is avoided.
As shown in fig. 1, 4 and 5, the motor 4 is drivingly connected to the screw shaft 3 via a timing pulley 7 having a reduction ratio.
The embodiment performs speed reduction transmission between the motor and the screw rod through the precise synchronous belt wheel with the speed reduction ratio, and the structure has the advantages of improving resolution and reducing control errors caused by loss of pulse number.
Specifically, the screw rod device 3 further comprises a rear end fixing seat 3-2, a base 3-3, a screw rod 3-4, a moving block 3-5, a sliding rod 3-6, a sliding rod fixing seat 3-7 and a pushing block 3-8; the moving block 3-5 is sleeved on the screw rod 3-4 and the slide rod 3-6; two ends of the screw rod 3-4 are respectively connected to the rear end fixing seat 3-2 and the front end fixing seat 3-1; two ends of the slide bar 3-6 are respectively connected to the rear end fixing seat 3-2 and the slide bar fixing seat 3-7; the rear end fixing seat 3-2 is connected to one end of the base 3-3 through a screw, and the front end fixing seat 3-1 and the sliding rod fixing seat 3-7 are connected to the other end of the base 3-3 through screws; the pushing block 3-8 is connected to the moving block 3-5 through screws, and the pushing block 3-8 is in contact with the handle 2-1 of the injection piston 2.
In the embodiment, the synchronous belt pulley 7 drives the screw rod 3-4 to rotate, the lead screw nut is arranged in the moving block 3-5 and is connected with the screw rod 3-4, the moving block 3-5 does linear motion, and the pushing block 3-8 connected to the moving block 3-5 pushes the handle 2-1 of the injection piston 2 to push out the liquid medicine in the injection medicine cylinder 1.
The synchronous belt wheel 7 comprises a driving wheel 7-1, a transmission belt 7-2 and a driven wheel 7-3; the driving wheel 7-1 is connected with a rotating shaft 4-1 of the motor 4, the motor 4 is connected to a motor base 4-2, and the motor base 4-2 is connected to the rear end fixing base 3-2; the driven wheel 7-3 is in transmission connection with the driving wheel 7-1 through the transmission belt 7-2, and the driven wheel 7-3 is connected with the screw rod 3-4.
The precise synchronous belt wheel with the speed reduction ratio is composed of the driving wheel, the transmission belt and the driven wheel, and is simple in structure and easy to manufacture.
It should be noted that the above mentioned embodiments and embodiments are intended to demonstrate the practical application of the technical solution provided by the present invention, and should not be interpreted as limiting the scope of the present invention. Various modifications, equivalent substitutions and improvements will occur to those skilled in the art and are intended to be within the spirit and scope of the present invention. The protection scope of the present invention is subject to the appended claims.
Claims (6)
1. A novel micro-injection pump comprises an injection cartridge (1), an injection piston (2), a lead screw device (3) and a motor (4), wherein the injection piston (2) is slidably inserted into the injection cartridge (1), the motor (4) drives the lead screw device (3) to push the injection piston (2) to do linear motion in the injection cartridge (1), the lead screw device (3) comprises a front end fixing seat (3-1), and the micro-injection pump is characterized in that,
the injection cartridge (1) is pressed into the cartridge fixing seat (5) for fixing, two Y-direction positioning beams (5-3) and one X-direction positioning beam (5-4) are respectively arranged on two sides of the bottom of the cartridge fixing seat (5), and the cartridge fixing seat (5) is tightly connected with the front end fixing seat (3-1) by embedding the two Y-direction positioning beams (5-3) and the X-direction positioning beam (5-4) into corresponding grooves of the front end fixing seat (3-1); the cartridge fixing seat (5) is fixedly connected with the front end fixing seat (3-1) through a quick fixing buckle (6).
2. The novel micro syringe pump of claim 1,
the contact surface of the cartridge fixing seat (5) and the injection cartridge (1) is an encircling arc surface (5-1);
the injection medicine cartridge is characterized in that a clamping groove (5-5) is formed in the medicine cartridge fixing seat (5), and a medicine cartridge flange (1-1) of the injection medicine cartridge (1) is embedded into the clamping groove (5-5) and fixed.
3. The novel micro syringe pump of claim 1,
the length directions of the two Y-direction positioning beams (5-3) are the radial directions of the cartridge fixing seats (5);
the length direction of the X-direction positioning beam (5-4) is the axial direction of the cartridge fixing seat (5);
two side surfaces of the medicine cylinder fixing seat (5) are provided with Z-direction fixing buckle mounting holes (5-2), and the hole depth direction of the Z-direction fixing buckle mounting holes (5-2) is the radial direction of the medicine cylinder fixing seat (5);
the quick fixing buckle (6) comprises an upper buckle seat (6-1) and a lower buckle seat (6-2), the upper buckle seat (6-1) is fixedly connected to the cartridge fixing seat (5) through a screw and a Z-direction fixing buckle mounting hole (5-2) close to one side of the Y-direction positioning beam (5-3), a hook (6-3) is arranged on the upper buckle seat (6-1), the lower buckle seat (6-2) is connected to the front end fixing seat (3-1) through a screw, a pressing handle (6-5) is axially connected to the lower buckle seat (6-2), a U-shaped hook (6-4) is rotatably connected to the pressing handle (6-5), the U-shaped hook (6-4) is sleeved on the hook (6-3), and the U-shaped hook (6-4) is tightened through the pressing handle (6-5);
the fastening direction of the quick fixing buckle (6) is vertical to the length direction of the Y-direction positioning beam (5-3).
4. A novel micro-syringe pump according to claim 3, characterized in that the motor (4) is drivingly connected to the screw device (3) via a timing pulley (7) with a reduction ratio.
5. The novel micro syringe pump of claim 4,
the screw rod device (3) further comprises a rear end fixing seat (3-2), a base (3-3), a screw rod (3-4), a moving block (3-5), a sliding rod (3-6), a sliding rod fixing seat (3-7) and a pushing block (3-8);
the moving block (3-5) is sleeved on the screw rod (3-4) and the sliding rod (3-6);
two ends of the screw rod (3-4) are respectively connected to the rear end fixing seat (3-2) and the front end fixing seat (3-1);
two ends of the slide bar (3-6) are respectively connected to the rear end fixing seat (3-2) and the slide bar fixing seat (3-7);
the rear end fixing seat (3-2) is connected to one end of the base (3-3) through a screw, and the front end fixing seat (3-1) and the sliding rod fixing seat (3-7) are connected to the other end of the base (3-3) through screws;
the pushing block (3-8) is connected to the moving block (3-5) through screws, and the pushing block (3-8) is in contact with a handle (2-1) of the injection piston (2).
6. The novel micro syringe pump of claim 5,
the synchronous belt wheel (7) comprises a driving wheel (7-1), a transmission belt (7-2) and a driven wheel (7-3);
the driving wheel (7-1) is connected with a rotating shaft (4-1) of the motor (4), the motor (4) is connected to a motor base (4-2), and the motor base (4-2) is connected to the rear end fixing base (3-2);
the driven wheel (7-3) is in transmission connection with the driving wheel (7-1) through the transmission belt (7-2), and the driven wheel (7-3) is connected with the screw rod (3-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584585.0U CN210590600U (en) | 2019-09-23 | 2019-09-23 | Novel micro-injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584585.0U CN210590600U (en) | 2019-09-23 | 2019-09-23 | Novel micro-injection pump |
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| Publication Number | Publication Date |
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| CN210590600U true CN210590600U (en) | 2020-05-22 |
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| CN201921584585.0U Active CN210590600U (en) | 2019-09-23 | 2019-09-23 | Novel micro-injection pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587984A (en) * | 2019-09-23 | 2019-12-20 | 天津勒燕封胥科技有限公司 | Novel micro-injection pump |
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2019
- 2019-09-23 CN CN201921584585.0U patent/CN210590600U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587984A (en) * | 2019-09-23 | 2019-12-20 | 天津勒燕封胥科技有限公司 | Novel micro-injection pump |
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