CN218717292U

CN218717292U - One-way plunger metering pump with dispensing function

Info

Publication number: CN218717292U
Application number: CN202223085899.0U
Authority: CN
Inventors: 王宇; 杨洋; 吴亚中; 冯航; 罗正艮
Original assignee: Suzhou Gaokai Precision Technology Co ltd
Current assignee: Suzhou Gaokai Precision Technology Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-03-24
Anticipated expiration: 2032-11-17

Abstract

The utility model discloses a one-way plunger metering pump with dispensing, which comprises a main shell, a plunger cylinder body, a driving component, a dispensing valve and a glue inlet valve; the lead screw is arranged in the main shell, the driving assembly is mounted at the top of the main shell and is in transmission connection with the driving assembly, a guide limiting rod is fixed in the main shell, a lead screw nut is assembled on the lead screw, the lower end of the lead screw nut is connected with a nut sliding seat, and the nut sliding seat is sleeved outside the lead screw and is connected to the guide limiting rod in a sliding manner; the glue inlet valve is installed at the upper end of the side wall of the plunger cylinder body and communicated with the plunger cylinder body, a throttle valve is further arranged between the glue dispensing valve and the plunger cylinder body, the inlet end of the throttle valve is communicated with the lower end of the plunger cylinder body through a first pipeline joint, and the outlet end of the throttle valve is communicated with the glue dispensing valve through a second pipeline joint. The utility model discloses small, light in weight, with the gluey valve set structure of gluing, saved the unnecessary pipeline, response speed is faster, and the precision is higher to the point.

Description

One-way plunger metering pump with dispensing function

Technical Field

The utility model relates to a technical field is glued to the accurate point, especially relates to an one-way plunger measuring pump that area point was glued.

Background

In the prior art, the plunger pump is used as a delivery pump, generally can be matched with a dispensing valve for dispensing, but needs to be communicated with the plunger pump and the dispensing valve through a hose pipeline, so that the glue is delivered. So not only occupation space relatively, probably cause the interference to the assembly, moreover because transmission line is longer, advance to glue and comparatively take time slowly, lead to a little to glue response speed not very fast, delay production easily to the incomplete glue surplus is more also can lead to the waste in the pipeline at every turn, needs often to wash the change pipeline, otherwise probably causes to solidify and blocks up, and the pipeline is also comparatively spent the cost as consumptive material consumption.

Meanwhile, the conventional plunger pump generally has a large volume, is not friendly in terms of space occupation and weight, and is not suitable for processes which need small glue amount and frequently glue dispensing, not to mention being mounted on a three-axis robot for use. And along with the requirement of the precision of point glue is higher and higher, the structure that plunger pump and point glue valve directly link has been difficult to satisfy the precision requirement of little volume of gluing, only relies on the on-off time of point glue valve self to control the volume of gluing undulant deviation still bigger.

The precise servo plunger metering pump can refer to patent number 201911149091.4, has larger volume and high weight, can only be connected with a dispensing valve through a pipeline when in use, has defects in the aspect of controlling the flow of glue, and can not meet the precision requirement of small glue amount only by changing the glue amount through the on-off time of the dispensing valve. Reference may also be made to a micro-flow plunger metering pump of patent No. 202121312180.9, which is also connected to the dispensing valve through a pipeline, and therefore, the flow cannot be directly adjusted, the dispensing frequency is relatively low, the dispensing response speed is slow, and the precision is relatively low during continuous dispensing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art not enough, provide a take one-way plunger measuring pump of point, its is small, light in weight, assembles an organic whole structure with the dispensing valve, has saved the unnecessary pipeline, and response speed is faster, and the point precision is higher.

In order to solve the technical problem, the technical scheme of the utility model is that:

a one-way plunger metering pump with dispensing comprises a main shell, a plunger cylinder body, a driving assembly, a dispensing valve and a glue inlet valve;

the nut sliding seat is sleeved outside the screw rod and is connected to the guide limiting rod in a sliding manner;

the plunger cylinder body is arranged at the bottom of the main shell, the bottom end of the nut sliding seat is connected with a plunger rod, and the plunger rod is inserted into the plunger cylinder body in a sliding manner;

the glue inlet valve is installed at the upper end of the side wall of the plunger cylinder body and communicated with the plunger cylinder body, a throttle valve is further arranged between the glue dispensing valve and the plunger cylinder body, the inlet end of the throttle valve is communicated with the lower end of the plunger cylinder body through a first pipeline joint, and the outlet end of the throttle valve is communicated with the glue dispensing valve through a second pipeline joint.

Further, drive assembly is including setting up the speed reducer on main casing body top and installing the servo motor on the speed reducer top, the lead screw top is connected with the speed reducer through the shaft coupling, the lead screw upper end outside still overlaps and is equipped with the bearing spare.

Furthermore, a plug screw is further arranged at the lower end of the side wall of the plunger cylinder body.

Further, the lower end of the plunger cylinder body is also provided with a pressure sensor.

Furthermore, the upper end of the plunger rod is arranged at the bottom end of the nut sliding seat through a positioning pin.

Furthermore, a cylindrical plunger rod sealing block is further arranged at the joint of the main shell and the plunger cylinder body, and the plunger rod is connected in the plunger rod sealing block in a sliding and penetrating mode.

Furthermore, the lower end of the side wall of the main shell is also provided with an oil window, and lubricating oil is filled between the plunger rod sealing block and the plunger rod.

Furthermore, a guide sleeve is further arranged in the main shell, and the nut sliding seat is connected in the guide sleeve in a sliding and penetrating mode.

Furthermore, the lower end of the dispensing valve is detachably provided with a glue outlet needle head.

Furthermore, the side wall of the main shell is also provided with a mounting plate.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

1. the utility model discloses a valve is glued with the point to two short and small rigid pipe joints is integrated as an organic whole structure with the plunger pump, has saved the structure of tube coupling, saves space and occupies for glue advances to glue faster, and the response speed of point is glued faster, has effectively improved production efficiency. Meanwhile, the pipeline joint is easy to clean, a lot of residual glue cannot be wasted in each use, the problems of solidification blockage and bubbles are not easy to occur, and the cost is reduced.

2. The utility model discloses still add integrative choke valve between plunger pump and dispensing valve, also can adjust the flow size of gluing volume transmission through the choke valve, can accomplish littleer volume demand of gluing by the management and control, the play of the rotational speed of reunion servo motor, dispensing valve glues time and goes out the model size of gluey syringe needle, can satisfy littleer, the higher volume requirement of gluing of precision, and the stability of gluing the volume is higher.

3. The utility model discloses rotate through the lead screw in the plunger pump and order about nut slide and plunger rod structure of passing from top to bottom and push away gluey, combine to advance gluey valve and glue the valve and integrate into an organic whole structure with some for the whole molding volume is comparatively small and exquisite, and weight is lighter, can use on the miniature triaxial robot of direct mount, and the control of gluing the volume is meticulous in addition, and the technological scope of being suitable for is more extensive, is particularly useful for needing little glue volume and the frequent technology of point gluing.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front cross-sectional view of the present invention;

FIG. 3 is a schematic side cross-sectional view of the present invention;

the device comprises a main shell, a shell and a cover, wherein 1, the main shell is provided with a base; 2. a plunger cylinder; 3. a servo motor; 4. a speed reducer; 5. a coupling; 6. a bearing member; 7. a screw rod; 8. a feed screw nut; 9. a nut slide; 10. guiding a limiting rod; 11. a plunger rod; 12. a throttle valve; 13. a first pipe joint; 14. a second pipe joint; 15. dispensing a glue valve; 16. a glue inlet valve; 17. a plug screw; 18. a pressure sensor; 19. positioning pins; 20. an oil window; 21. a guide sleeve; 22. a glue outlet needle head; 23. a plunger rod sealing block; 24. and (7) mounting the plate.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1-3, in the present embodiment, a one-way plunger metering pump with dispensing is provided, which mainly comprises a main housing 1, a plunger cylinder 2, a driving assembly, a dispensing valve 15, and a glue inlet valve 16. Wherein 1 internal rotation of main casing is provided with lead screw 7, drive assembly installs at main casing 1 top, and lead screw 7 is connected with the drive assembly transmission, drive assembly specifically is

servo motor

3 and 4 combination of speed reducer, 4 fixed mounting on main casing 1 tops promptly, servo motor 3 installs at 4 tops of speed reducer and with 4 transmission coordination of speed reducer, 7 tops of lead screw are connected with speed reducer 4 through shaft coupling 5 simultaneously, and 7 upper end outsides of lead screw still overlaps and is equipped with bearing piece 6 and stabilizes the rotation of lead screw 7. The lead screw 7 is provided with a lead screw nut 8, the lower end of the lead screw nut 8 is fixedly connected with a nut slide seat 9, the main body of the nut slide seat 9 is of a cylindrical structure and is sleeved outside the lead screw 7, a guide limiting rod 10 is fixed in the main shell 1, the nut slide seat 9 is connected to the guide limiting rod 10 in a vertical sliding mode, and the nut slide seat 9 is limited in rotation and guided to slide through the guide limiting rod 10. Plunger cylinder body 2 rigid coupling is in main casing 1 bottom, is equipped with plunger rod 11 in nut slide 9 bottom, and concrete plunger rod 11 upper end is pegged graft in nut slide 9 and is carried out the chucking through locating pin 19, carries out the dismouting after being convenient for wear and tear and changes, and plunger rod 11 slides and pegs graft in plunger cylinder body 2.

Specifically, the glue inlet valve 16 in this embodiment may be a common on-off valve or an electromagnetic valve, the glue inlet valve 16 is installed at the upper end of the side wall of the plunger cylinder 2, and the glue inlet valve 16 is communicated with the inside of the plunger cylinder 2, when in normal use, only a glue pipeline is connected to an inlet of the glue inlet valve 16, glue is extruded by matching air pressure and flows into the glue inlet valve 16, and then the glue inlet valve 16 is controlled to be opened, so that glue flows into the plunger cylinder 2. Meanwhile, in order to control the glue conveying flow more finely, a throttle valve 12 is further arranged between the glue dispensing valve 15 and the plunger cylinder body 2, the inlet end of the throttle valve 12 is communicated with the lower end of the plunger cylinder body 2 through a first pipeline joint 13, the outlet end of the throttle valve 12 is communicated with the glue dispensing valve 15 through a second pipeline joint 14, the first pipeline joint 13 and the second pipeline joint 14 are short in length and made of rigid metal materials, the two ends of the throttle valve are assembled and fixed through threads, a sealing element is additionally arranged for sealing, the plunger cylinder body 2 is communicated with the glue dispensing valve 15 through the first pipeline joint 13, the throttle valve 12, the second pipeline joint 14, and the specific glue dispensing valve 15 can be a conventional on-off valve, an electromagnetic valve or a screw valve and the like.

When the plunger cylinder works, the glue pipeline is connected to the inlet of the glue inlet valve 16, the glue is extruded by matching with air pressure and flows into the glue inlet valve 16, and then the glue inlet valve 16 is opened to enable the glue to flow into the plunger cylinder 2; meanwhile, the servo motor 3 controls the speed reducer 4 to drive the screw rod 7 to rotate reversely, and then drives the screw rod nut 8 and the nut sliding seat 9 to move upwards in the main shell 1 along the guide limiting rod 10, so as to drive the plunger rod 11 to lift upwards and make room for feeding glue into the plunger cylinder body 2; after the plunger cylinder body 2 is filled with glue, the glue inlet valve 16 is closed, then the servo motor 3 controls the speed reducer 4 to drive the screw rod 7 to rotate forwards, and then the screw rod nut 8 and the nut sliding seat 9 are driven to move downwards in the main shell body 1 along the guide limiting rod 10, so that the plunger rod 11 is driven to move downwards in the plunger cylinder body 2 and push and press the glue; glue in the plunger cylinder body 2 enters the glue inlet valve 15 through the first pipeline joint 13, the throttle valve 12 and the second pipeline joint 14, and then is precisely dispensed through the glue dispensing valve 15. Of course, the glue outlet needle 22 is detachably assembled at the lower end of the glue dispensing valve 15, and the type of the glue outlet needle 22 can be selectively replaced according to the glue amount process requirement. Also can adjust the flow size of gluing volume transmission through choke valve 12, consequently can the management and control accomplish littleer gluey volume demand, the rotational speed of reunion servo motor 3, the play of dispensing valve 15 glue time and the model size of going out gluey syringe needle 22 can satisfy littleer, the higher gluey volume requirement of precision, and the stability of gluing the volume is higher.

This embodiment will be glued valve 15 and plunger pump integrated structure through two short and small rigid pipe joints, has saved the structure of tube coupling, has saved the space and has occupy for glue advances to glue faster, and the response speed of point gluing is faster, has effectively improved production efficiency. Meanwhile, the pipeline joint is easy to clean, a lot of residual glue cannot be wasted in each use, the problems of solidification blockage and bubbles cannot occur easily, and the cost is reduced. In addition, in the embodiment, the screw 7 rotates to drive the nut slide 9 and the plunger rod 11 to move up and down to push the glue, and the glue inlet valve 16 and the glue dispensing valve 15 are integrated into an integrated structure, so that the overall modeling volume is small and the weight is light. In addition, still be equipped with mounting panel 24 on main casing 1 lateral wall, so can use the direct mounting of this embodiment to miniature triaxial robot through mounting panel 24, and the control of gluing volume is meticulous, and the process range of being applicable to is wider, especially is applicable to the technology that needs little glue volume and point and frequently glues.

In order to form a good seal between the main housing 1 and the plunger cylinder 2, a cylindrical plunger rod sealing block 23 is further installed at the junction of the main housing 1 and the plunger cylinder 2 of the present embodiment, and the plunger rod 11 is slidably penetrated in the plunger rod sealing block 23. Meanwhile, lubricating oil is further injected between the plunger rod sealing block 23 and the plunger rod 11 to reduce sliding friction during operation, so that an oil window 20 is further installed at the lower end of the side wall of the main shell 1, the oil window 20 is specifically a window like transparent glass, the oil window 20 can be opened and then lubricating oil is injected into the interior, the lubricating oil finally flows between the plunger rod sealing block 23 and the plunger rod 11, and the abrasion condition of the interior plunger rod 11 can be observed through the oil window 20 during operation, so that accessories can be replaced in time.

In order to enhance the sliding stability of the nut sliding seat 9, a guide sleeve 21 is further fixed on the inner wall of the main housing 1 of the embodiment, and the nut sliding seat 9 is slidably penetrated in the guide sleeve 21, so that the alignment degree of the up-and-down sliding is ensured. Lubricating fluid can be coated on the guide sleeve 21 and the nut sliding seat 9 to reduce friction force, and lubricating fluid can be coated on the sliding part of the guide limiting rod 10 and the nut sliding seat 9 to reduce sliding friction.

In order to facilitate the glue discharging treatment before the dispensing, the lower end of the side wall of the plunger cylinder body 2 is further provided with a plug screw 17, the plug screw 17 is connected into the plunger cylinder body 2 in a threaded manner, and a sealing ring is additionally arranged for sealing. When advancing to gluing in the plunger cylinder body 2, can open end cap screw 17 and carry out the binder removal and handle, can emit the bubble of glue initial segment like this, prevent to influence and glue the precision, can also be convenient for confirm whether fill up the glue in the plunger cylinder body 2. In addition, a pressure sensor 18 can be additionally arranged at the lower end of the plunger cylinder body 2, the pressure sensor 18 is directly communicated to the bottom end inside the plunger cylinder body 2, and whether the plunger cylinder body 2 is filled with glue or not can be judged according to the glue pressure.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments further describe the technical problems, technical solutions and advantages of the present invention in detail, it should be understood that the above only are embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a take one-way plunger measuring pump of point, its characterized in that: comprises a main shell (1), a plunger cylinder body (2), a driving component, a dispensing valve (15) and a glue inlet valve (16);

the lead screw driving device is characterized in that a lead screw (7) is arranged in the main shell (1), the driving assembly is installed at the top of the main shell (1), the lead screw (7) is in transmission connection with the driving assembly, a guide limiting rod (10) is fixed in the main shell (1), a lead screw nut (8) is assembled on the lead screw (7), the lower end of the lead screw nut (8) is connected with a nut sliding seat (9), and the nut sliding seat (9) is sleeved outside the lead screw (7) and is connected to the guide limiting rod (10) in a sliding manner;

the plunger cylinder body (2) is arranged at the bottom of the main shell (1), the bottom end of the nut sliding seat (9) is connected with a plunger rod (11), and the plunger rod (11) is inserted into the plunger cylinder body (2) in a sliding manner;

advance gluey valve (16) and install in plunger cylinder body (2) lateral wall upper end and communicate with plunger cylinder body (2), still be provided with choke valve (12) between dispensing valve (15) and plunger cylinder body (2), choke valve (12) entry end and plunger cylinder body (2) lower extreme communicate through first pipe joint (13), communicate through second pipe joint (14) between choke valve (12) exit end and dispensing valve (15).

2. The one-way plunger metering pump with dispensing function of claim 1, wherein: the drive assembly is including setting up speed reducer (4) on main casing body (1) top and installing servo motor (3) on speed reducer (4) top, lead screw (7) top is passed through shaft coupling (5) and is connected with speed reducer (4), lead screw (7) upper end outside still overlaps and is equipped with bearing piece (6).

3. The one-way plunger metering pump with dispensing function of claim 1, wherein: and a plug screw (17) is further arranged at the lower end of the side wall of the plunger cylinder body (2).

4. The dispensing one-way plunger metering pump of claim 1, wherein: the lower end of the plunger cylinder body (2) is also provided with a pressure sensor (18).

5. The dispensing one-way plunger metering pump of claim 1, wherein: the upper end of the plunger rod (11) is arranged at the bottom end of the nut sliding seat (9) through a positioning pin (19).

6. The dispensing one-way plunger metering pump of claim 1, wherein: the joint of the main shell (1) and the plunger cylinder body (2) is further provided with a cylindrical plunger rod sealing block (23), and the plunger rod (11) is connected in the plunger rod sealing block (23) in a sliding and penetrating mode.

7. The one-way plunger metering pump with dispensing function of claim 6, wherein: the lower end of the side wall of the main shell (1) is further provided with an oil window (20), and lubricating oil is injected between the plunger rod sealing block (23) and the plunger rod (11).

8. The dispensing one-way plunger metering pump of claim 1, wherein: still be provided with uide bushing (21) in the main casing body (1), nut slide (9) slide to wear to connect in uide bushing (21).

9. The dispensing one-way plunger metering pump of claim 1, wherein: the lower end of the dispensing valve (15) is detachably provided with a glue outlet needle head (22).

10. The dispensing one-way plunger metering pump of claim 1, wherein: the side wall of the main shell (1) is also provided with a mounting plate (24).