CN112796992A - Precision screw dispensing liquid injection pump - Google Patents

Precision screw dispensing liquid injection pump Download PDF

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Publication number
CN112796992A
CN112796992A CN202110161337.0A CN202110161337A CN112796992A CN 112796992 A CN112796992 A CN 112796992A CN 202110161337 A CN202110161337 A CN 202110161337A CN 112796992 A CN112796992 A CN 112796992A
Authority
CN
China
Prior art keywords
shaft
hole
transmission shaft
connecting shaft
injection pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110161337.0A
Other languages
Chinese (zh)
Inventor
谭军钱
陈文宗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Juzhun Automation Equipment Co ltd
Original Assignee
Dongguan Juzhun Automation Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Juzhun Automation Equipment Co ltd filed Critical Dongguan Juzhun Automation Equipment Co ltd
Priority to CN202110161337.0A priority Critical patent/CN112796992A/en
Publication of CN112796992A publication Critical patent/CN112796992A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Abstract

The application relates to a liquid equipment technical field is annotated in point, and more specifically says, it relates to a liquid pump is annotated in accurate screw rod point, include: the base is used for mounting the driving part and is provided with a through hole; the material injection pipe is coaxial with the through hole and is arranged at the bottom end of the machine shell through a first threaded part; the dispensing head is coaxially arranged at the bottom end of the material injection pipe through a second threaded part together with the through hole; the eccentric feeding part comprises a shaft coupling, a connecting shaft, a transmission shaft and a spiral shaft which are sequentially connected and rotatably connected to the inner wall of the through hole, the shaft coupling, the connecting shaft and the transmission shaft are coaxially connected, the spiral shaft is eccentrically connected with the transmission shaft, and the connecting shaft and the transmission shaft, and the transmission shaft and the spiral shaft are hinged through pin shafts. This application has the exquisite compactness of structure, can annotate liquid in succession and glue, injecting glue pressure is big, can not only spout gluey, can also "inhale the gluey advantage of preventing spilling.

Description

Precision screw dispensing liquid injection pump
Technical Field
The application relates to a point is glued and is annotated liquid equipment technical field, and more specifically, it relates to a liquid pump is glued to accurate screw rod point.
Background
Along with the rapid development and growth of 3D printing technology, various glue injection mechanism designs are also available in the market at present, a motor is used for driving a screw rod to rotate forwards and backwards through a gearbox, the screw rod can be linked with a piston assembly arranged in a preset charging barrel to reciprocate, so that the piston assembly is used for extruding molten plastics in the charging barrel to form a discharging (glue injection) action, the combined structure is large in size and high in cost, the discharging (glue injection) amount is not easy to accurately control, and the practical application range of the combined structure is limited.
In order to overcome the above disadvantages, there is a design in the market that a rotary screw rod replaces a telescopic piston assembly (or a glue drawing rod), in which a glue injection channel in a (injection) cylinder is provided with a screw rod with a coaxial (central) center, the shaft rod is directly or indirectly driven by a preset power source (step motor), and the rotation of the screw rod extrudes molten plastics in the (injection) cylinder, so that the plastics can flow out through a preset glue dispensing head at the end of the (injection) cylinder, thereby achieving a precise discharge (glue injection) control function.
However, the screw is rotated by the helical thread to stir the molten plastic in the cylinder, so as to achieve the purpose of pressurization, but the screw is limited by the shape and structural characteristics of the screw itself, and most of the injection devices driven by the rotating screw are difficult to generate large injection pressure, thereby affecting the overall development and application of the injection devices.
Disclosure of Invention
To the not enough of above-mentioned prior art, the purpose of this application is to provide a liquid pump is glued to accurate screw rod point, has the exquisite compactness of structure, the big advantage of injecting glue pressure.
The technical purpose of the application is realized by the following technical scheme: the utility model provides a liquid pump is glued to accurate screw rod point, includes:
the base is used for mounting the driving part and is provided with a through hole;
the material injection pipe is coaxial with the through hole and is arranged at the bottom end of the machine shell through a first threaded part;
the dispensing head is coaxially arranged at the bottom end of the material injection pipe through a second threaded part together with the through hole;
the eccentric feeding part comprises a shaft coupling, a connecting shaft, a transmission shaft and a spiral shaft which are sequentially connected and rotatably connected to the inner wall of the through hole, the shaft coupling, the connecting shaft and the transmission shaft are coaxially connected, the spiral shaft is eccentrically connected with the transmission shaft, and the connecting shaft and the transmission shaft, and the transmission shaft and the spiral shaft are hinged through pin shafts.
Preferably, a feeding hole communicated with the through hole is formed in one side of the machine base.
Preferably, a shaft seal is arranged between the connecting shaft and the inner wall of the through hole.
Preferably, the shaft seal comprises a ring body and a funnel-shaped buffer body which is arranged on the inner side of the ring body and sleeved on the connecting shaft.
Preferably, the driving part is a servo motor.
Preferably, a sealing ring is annularly arranged on the outer side of the shaft seal.
Preferably, the first threaded member and the second threaded member are both nuts.
Preferably, the inner wall of the material injection pipe is provided with a rubber stator sleeve with threads.
To sum up, the beneficial effect that this application has: when the liquid injection pump works, the liquid injection pump is driven by the driving part
Deflection
The core feeding part rotates and drives the screw shaft to do eccentric motion through the transmission of the coupler, the connecting shaft and the transmission shaft, so that the screw shaft does eccentric rotation in the material injection pipe, a larger centrifugal force can be generated in the process of utilizing the eccentric rotation of the screw shaft, and the rubber material is extruded to the dispensing head under the combined action of the centrifugal force, the rubber material gravity and the screw feeding of the screw shaft, so that the rubber discharging pressure, the rubber discharging speed and the rubber discharging amount are improved, and the structure is exquisite and compact; in addition, the connecting shaft and the transmission shaft are hinged with each other through pin shafts, so that the rigid connection is changed into movable connection, and small eccentric vibration is absorbed, so that the movement of the screw shaft is stable and smooth;
the servo motor is accurately controlled, and the glue yield of the glue material can be accurately controlled; and through the corotation of servo motor, can realize that the dispensing head goes out to glue, through servo motor reversal, can realize that the dispensing head "inhales to glue", after the dispensing is glued, can avoid the dispensing head to appear spilling the condition of gluing like this for it is more clean and tidy on the point glue thing.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a cross-sectional view of an embodiment of the present application;
FIG. 3 is a partial exploded view of an eccentric feed section in an embodiment of the present application;
fig. 4 is another perspective view of a partial exploded view of the eccentric feed portion in the embodiment of the present application.
Reference numerals: 1. a machine base; 11. a feed port; 2. a material injection pipe; 3. a first screw member; 4. dispensing a glue head; 5. a second threaded member; 6. an eccentric feed section; 61. a coupling; 62. a connecting shaft; 63. a drive shaft; 64. a screw shaft; 7. shaft sealing; 71. a ring body; 72. a buffer body; 73. a seal ring; 8. and a rubber stator sleeve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or position relative to the orientation or position shown in the drawings to facilitate the description of the application and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be considered limiting of the application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
A precision screw dispensing and filling pump, see fig. 1 to 4, comprising:
a frame 1 for mounting a driving part (not shown) and having a through hole;
the material injection pipe 2 is coaxial with the through hole and is arranged at the bottom end of the machine shell through a first threaded part 3;
the dispensing head 4 is coaxially arranged at the bottom end of the material injection pipe 2 with the through hole through a second threaded part 5;
the eccentric feeding part 6 comprises a coupling 61, a connecting shaft 62, a shaft sleeve and a shaft sleeve, wherein the coupling 61, the connecting shaft 62 and the shaft sleeve are sequentially connected and rotatably connected with the inner wall of the through hole,
The transmission shaft 63 and the screw shaft 64, the coupler 61, the connecting shaft 62 and the transmission shaft 63 are coaxially connected, the screw shaft 64 and the transmission shaft 63 are eccentrically connected, and the connecting shaft 62 and the transmission shaft 63, and the transmission shaft 63 and the screw shaft 64 are hinged through pin shafts.
When the liquid injection pump works, the eccentric feeding part 6 is driven to rotate by the driving part and passes through the coupling 61 and the connecting shaft 62
The screw shaft 64 is driven to do eccentric motion by the transmission of the transmission shaft 63, so that the screw shaft 64 does eccentric rotation in the material injection pipe 2, and the rubber material is extruded to the dispensing head 4 under the combined action of the centrifugal force, the rubber material gravity and the screw feeding of the screw shaft 64 by utilizing the larger centrifugal force generated in the process of the eccentric rotation of the screw shaft 64, so that the rubber material discharging pressure, the rubber material discharging speed and the rubber material discharging amount are improved, and the structure is exquisite and compact; in addition, the connecting shaft 62 and the transmission shaft 63 are hinged through pin shafts, and the transmission shaft 63 and the screw shaft 64 are hinged through pin shafts, so that the rigid connection is changed into movable connection, small eccentric vibration is absorbed, and the movement of the screw shaft 64 is stable and smooth.
In this embodiment, the base 1, the feeding tube 2 and the dispensing head 4 are all sealed.
Specifically, a feeding hole 11 communicated with the through hole is formed in one side of the machine base 1. Of course, the number and the position of the feeding holes 11 can be adjusted according to actual requirements.
Specifically, a shaft seal 7 is arranged between the connecting shaft 62 and the inner wall of the through hole.
Specifically, the shaft seal 7 includes a ring body 71 and a funnel-shaped buffer body 72 disposed inside the ring body 71 and sleeved on the connecting shaft 62. The cushion body 72 can absorb the amount of deformation of the ring body 71 due to bending.
Specifically, the driving part is a servo motor. The servo motor is accurately controlled, and the glue yield of the glue material can be accurately controlled; and through the corotation of servo motor, can realize that the dispensing head 4 goes out to glue, through servo motor reversal, can realize that dispensing head 4 "inhales to glue", after dispensing, can avoid dispensing head 4 to appear spilling the condition of gluing like this for the point is glued and is got things neatly more.
Specifically, a sealing ring 73 is annularly arranged on the outer side of the shaft seal 7. So as to maintain the sealing performance between the outer periphery of the shaft and the inner wall of the through hole.
Specifically, the first screw member 3 and the second screw member 5 are both nuts.
Specifically, the inner wall of the material injection pipe 2 is provided with a rubber stator sleeve 8 with threads, which is used for reducing the impact of the screw shaft 64 on the inner wall of the material injection pipe 2 and guiding the rubber to make spiral motion.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims of the present application.

Claims (5)

1. The utility model provides a liquid pump is glued to accurate screw rod point which characterized in that includes:
the base is used for mounting the driving part and is provided with a through hole;
the material injection pipe is coaxial with the through hole and is arranged at the bottom end of the machine shell through a first threaded part;
the dispensing head is coaxially arranged at the bottom end of the material injection pipe through a second threaded part together with the through hole;
the eccentric feeding part comprises a shaft coupling, a connecting shaft, a transmission shaft and a spiral shaft which are sequentially connected and rotatably connected to the inner wall of the through hole, the shaft coupling, the connecting shaft and the transmission shaft are coaxially connected, the spiral shaft is eccentrically connected with the transmission shaft, and the connecting shaft and the transmission shaft, and the transmission shaft and the spiral shaft are hinged through pin shafts.
2. The precision screw dispensing and injecting pump as claimed in claim 1, wherein a feed hole is formed at one side of the base and communicates with the through hole.
3. The precision screw dispensing and injecting pump as claimed in claim 2, wherein said driving part is a servo motor.
4. The precision screw dispensing pump according to claim 3, wherein the first threaded member and the second threaded member are nuts.
5. The precise screw dispensing and injecting pump as claimed in claim 4, wherein the inner wall of the injecting tube is provided with a rubber stator sleeve having threads.
CN202110161337.0A 2021-02-05 2021-02-05 Precision screw dispensing liquid injection pump Pending CN112796992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110161337.0A CN112796992A (en) 2021-02-05 2021-02-05 Precision screw dispensing liquid injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110161337.0A CN112796992A (en) 2021-02-05 2021-02-05 Precision screw dispensing liquid injection pump

Publications (1)

Publication Number Publication Date
CN112796992A true CN112796992A (en) 2021-05-14

Family

ID=75814470

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110161337.0A Pending CN112796992A (en) 2021-02-05 2021-02-05 Precision screw dispensing liquid injection pump

Country Status (1)

Country Link
CN (1) CN112796992A (en)

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