CN-122017268-A - Full-automatic finger melting instrument

CN122017268ACN 122017268 ACN122017268 ACN 122017268ACN-122017268-A

Abstract

The application discloses a full-automatic finger melting instrument which comprises a workbench surface, a main body, an automatic feeding module, an automatic scrap shearing and collecting module, a piston rod automatic cleaning module and a control system, wherein the workbench surface is arranged on a fixed foundation, a multi-shaft robot is arranged on the workbench surface, the main body is arranged on the workbench surface and is provided with a charging barrel, a hole membrane detachably arranged at the bottom of the charging barrel and a piston rod capable of moving up and down in the charging barrel, the automatic feeding module is movably arranged above the charging barrel, the automatic scrap shearing and collecting module is arranged below the hole membrane, the piston rod automatic cleaning module is used for receiving the piston rod after experiments and conducting multi-stage wiping and brushing, the hole membrane automatic picking and placing and cleaning module is used for automatically disassembling the hole membrane and cleaning the surface and the side wall of the hole membrane, and the control system is electrically connected with the hole membrane and the multi-shaft robot. The full-automatic finger melting instrument can realize full-process automation from feeding to cleaning, so that the testing efficiency, the result consistency and the equipment intelligence level are improved.

Inventors

ZHANG YAN
CHI HAIPENG
ZHANG JINGJUN

Assignees

北京戴纳实验科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260413

Claims (10)

1.A full-automatic melt finger instrument, comprising: the workbench comprises a workbench surface and a working table, wherein the workbench surface is arranged on a fixed foundation, a multi-axis robot is arranged on the workbench surface and used for transferring required execution components among stations, and the multi-axis robot is arranged on the workbench surface: A melt finger apparatus main body having a cylinder, a hole film detachably provided at the bottom of the cylinder, and a piston rod movable up and down in the cylinder; The automatic feeding module is movably arranged above the charging barrel and is used for feeding materials into the charging barrel in a fixed quantity and primarily compacting the materials; the waste automatic cutting and collecting module is arranged below the porous membrane and is used for automatically cutting materials in the experimental process; The piston rod automatic cleaning module is used for receiving the piston rod after the experiment and performing multistage wiping and brushing; the automatic pore membrane taking, placing and cleaning module is used for automatically disassembling and assembling the pore membrane and cleaning the surface and the side wall of the pore membrane; and the control system is electrically connected with the modules and the multi-axis robot and is used for coordinating the actions of the modules so as to realize the full-flow automatic operation of the melt finger test.
2. The fully automatic melt finger instrument of claim 1, wherein the automatic loading module comprises: The multi-point position driving mechanism comprises a lifting driving mechanism, a rotary driving device and a translation driving mechanism, wherein the fixed end of the translation driving mechanism is arranged on the melt finger instrument device main body, the fixed end of the lifting driving mechanism is arranged on the moving end of the translation driving mechanism, and the fixed end of the rotary driving device is arranged on the moving end of the lifting driving mechanism; The composite hopper is arranged on the moving end of the lifting driving mechanism so as to realize vertical lifting; the composite rod is connected with the rotary driving device and arranged in the composite funnel, and the rotary driving device is used for driving the composite rod to stir in a rotary mode; The blocking part is sleeved on the composite rod and synchronously moves along the vertical direction with the composite rod, and is used for blocking or opening a feed opening of the composite funnel under the instruction of the control system.
3. The fully automatic melt finger instrument according to claim 2, wherein the multi-point position driving mechanism further comprises a poking driving mechanism arranged between the lifting driving mechanism and the rotary driving device, and the poking driving mechanism is used for driving the composite rod to reciprocate up and down.
4. The full-automatic finger melting instrument according to claim 2, wherein the automatic feeding module further comprises a funnel cover and a funnel cover lifting device for driving the funnel cover to vertically lift, the funnel cover lifting device is arranged on the moving end of the lifting driving mechanism, and a blowing mechanism is arranged on the funnel cover and is used for blowing off wall-mounted dust after feeding is completed.
5. The fully automatic melt finger instrument of claim 1, wherein the piston rod automatic cleaning module comprises: The cloth supply mechanism comprises a lifting table for stacking cleaning cloth and a photoelectric switch for detecting the height of the uppermost cloth surface; the needling suction cup is arranged on the tail end clamp of the multi-axis robot and is provided with a telescopic thin needle, and the needling suction cup is used for grabbing the cleaning cloth on the lifting table in a penetrating and negative pressure combined mode.
6. The fully automatic melt finger apparatus of claim 5, wherein the piston rod automatic cleaning module further comprises an elastic clamp tube wiping mechanism, the elastic clamp tube wiping mechanism comprises two half tube bodies which are formed by involution and provided with peripheral grooves, and springs for providing radial pre-tightening force inwards are embedded in the peripheral grooves so that the two half tube bodies generate elastic holding force on the piston rod entering the elastic clamp tube wiping mechanism.
7. The fully automatic melt finger machine according to claim 6, wherein the automatic piston rod cleaning module further comprises a wire brush mechanism, which is composed of at least two wire brush plates which are oppositely arranged and have adjustable intervals, and is used for carrying out secondary brushing on the wiped piston rod.
8. The fully automatic melt finger instrument of claim 1, wherein the automated aperture film pick-and-place and clean module comprises: the picking and placing device comprises a movable thimble mechanism with an elastic buffer structure, wherein the thimble mechanism is used for being inserted into a central hole of the hole film so as to position and support the hole film; an ejector device comprising a movable ejector member configured to be depressed from above the apertured film and cooperate with the ejector mechanism to remove the apertured film from the cartridge; A cleaning device which is arranged on the moving path of the picking and placing device and is used for cleaning the surface and the peripheral surface of the picked hole film; And the driving control device is respectively connected with the taking and placing device, the ejection device and the cleaning device, and is used for driving the taking and placing device to transfer the pore membrane between the charging barrel and the cleaning device and controlling the devices to cooperatively act.
9. The fully automatic melt finger instrument of claim 8, wherein the thimble mechanism comprises: A rotary table driven by the driving source to achieve horizontal rotation; The pressing block is fixedly provided with a thimble; the pressing block is arranged on the rotary table in a sliding manner through the connecting piece; An elastic component sleeved on the connecting piece, two ends of the elastic component elastically abutting between the pressing block and the rotary table, and And the lifting device is arranged on the rotary table and used for driving the pressing block to lift.
10. The fully automatic melt finger instrument of claim 8, wherein the cleaning device further comprises: An upper surface cleaning unit including a cleaning tool driven to reciprocate by a driving device, the cleaning tool being used for cleaning an upper surface residue of the hole film; the peripheral surface cleaning unit comprises symmetrically arranged rotary wire brushes, wherein each rotary wire brush is connected with a driving device, and the rotary wire brushes are arranged on the opening and closing clamping jaws so that the rotary wire brushes contact the cylindrical peripheral surface of the hole film through the closing of the clamping jaws.

Description

Full-automatic finger melting instrument Technical Field The application relates to the technical field of laboratory automation equipment, in particular to a full-automatic finger melting instrument. Background Melt index (MFR/MVR) is an important parameter for measuring the melt flowability of thermoplastics under specific conditions and is widely used in the field of plastics production, processing and quality control. At present, the testing process of the finger melting instrument on the market is highly dependent on manual operation, and the steps are complicated, and mainly comprise manual weighing and feeding, manual placement of a piston rod and weights, manual shearing and collection of effluent waste after experiments, manual taking out and cleaning of the piston rod and a hole membrane (or called mouth membrane), and the like. The prior art has the following main defects of 1. The efficiency is low, the consistency is poor, the number of manual operation steps is large, the time consumption is long, and the repeatability of test results is poor and the human error is large due to the differences of different operators or the same operator in different operations. 2. The material adaptability is insufficient, and for viscous materials, granular materials easy to agglomerate or powdery materials easy to fly, the manual feeding is difficult, uneven feeding, splashing or blockage are easy to cause, and the testing accuracy is affected. 3. The automation degree is low, and a complete solution is lacking, namely the prior art lacks an integrated and automatic solution for the whole flow (feeding, waste treatment, piston rod cleaning, pore membrane taking and placing and cleaning) of the melt finger test. Particularly, the automatic taking, placing and cleaning of the porous membrane and the reliable automatic feeding of various materials (viscous fluid, particles and powder) are technical problems in the industry. 4. Cleaning and maintenance are complicated, namely residual melts (particularly hardened materials after cooling) on the piston rod and the hole film are difficult to clean, manual wiping or brushing efficiency is low, and the risk of incomplete cleaning exists, so that the subsequent test is influenced. Therefore, a full-automatic melt finger instrument capable of realizing full-process automation from feeding to cleaning and stably processing various materials is needed to improve the testing efficiency, the result consistency and the equipment intelligence level. Disclosure of Invention The application mainly aims to provide a full-automatic finger melting instrument which can realize full-process automation from feeding to cleaning and can stably process various materials in a physical state so as to improve the testing efficiency, the result consistency and the equipment intelligence level. In order to achieve the above object, according to a first aspect of the present application, a full-automatic finger melting apparatus is provided, which comprises a table surface arranged on a fixed basis, a multi-axis robot arranged on the table surface and used for transferring required execution components among stations, a finger melting apparatus device body arranged on the table surface and provided with a charging barrel, a hole membrane detachably arranged at the bottom of the charging barrel and a piston rod capable of moving up and down in the charging barrel, an automatic feeding module movably arranged above the charging barrel and used for feeding materials into the charging barrel in a quantitative manner and performing preliminary compaction on the materials, a waste automatic cutting and collecting module arranged below the hole membrane and used for automatically cutting the materials in the experimental process, a piston rod automatic cleaning module used for receiving the piston rod after the experiment and performing multi-stage wiping and brushing, a hole membrane automatic taking and placing and cleaning module used for automatically disassembling the hole membrane and cleaning the surface and the side wall of the hole membrane, and a control system electrically connected with the modules and the multi-axis robot and used for realizing full-scale operation of the automatic finger melting test. Further, the automatic feeding module comprises a multi-point position driving mechanism, a composite funnel and a blocking part, wherein the multi-point position driving mechanism comprises a lifting driving mechanism, a rotary driving device and a translation driving mechanism, the fixed end of the translation driving mechanism is arranged on the body of the melt finger instrument, the fixed end of the lifting driving mechanism is arranged on the moving end of the translation driving mechanism, the fixed end of the rotary driving device is arranged on the moving end of the lifting driving mechanism, the composite funnel is arranged on the moving end of the lifting driving mechanism so