CN210571836U

CN210571836U - Melt index instrument

Info

Publication number: CN210571836U
Application number: CN201921525543.XU
Authority: CN
Inventors: 胡志高
Original assignee: Dongguan Kaibai Plastic Technology Co Ltd
Current assignee: Dongguan Kaibai Plastic Technology Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-19
Anticipated expiration: 2029-09-09

Abstract

The utility model relates to a melt index appearance, include: a machine base; the charging barrel is arranged in the base; the material storage channel is vertically arranged in the charging barrel; a heater overlying an outer wall of the cartridge; and the setting is in feed cylinder upside, weight platform that is used for placing the weight, the lower extreme of weight platform extends to be provided with and inserts to hold the stripper bar in the material passageway, the stripper bar deviates from the one end of weight platform be provided with the material pushing component of feed cylinder inner wall looks butt, the bottom of feed cylinder is provided with the bush that is used for extrudeing the melt and flows out, will have been seted up to one side of frame the bush slides in or the roll-off the bar opening of frame, still be provided with on the frame a plurality of be used for with the fixed fastener of bush. The utility model discloses have and prevent that the solution from gluing at the inner wall of feed cylinder for outside the better extrusion feed cylinder of solution, and can install fast or dismantle the bush, thereby be convenient for carry out abluent effect to the bush.

Description

Melt index instrument

Technical Field

The utility model belongs to the technical field of the technique of fuse-element flow rate measuring equipment and specifically relates to a melt index appearance is related to.

Background

At present, the melt index meter is also called as a melt flow rate meter: the method is used for measuring melt flow rate MFR values of various plastics and resins in viscous flow states, is suitable for engineering plastics with higher melting temperature and testing plastics with lower melting temperature, and is widely applied to industries such as plastic production, plastic products, petrochemical industry and the like and related detection and test departments such as scientific research, commercial inspection and the like.

Existing melt index meters generally include: the device comprises an instrument body, a charging barrel, a heater, a piston rod, a weight and a mouth mold; during testing, the charging barrel is heated through the heater, the piston rod is pulled out after the expected testing temperature is reached, a plastic sample material is filled into a center hole of the charging barrel, the piston rod is placed after the material is compacted through a tool, a weight is pressed on the top of the piston rod after a sample is melted, and the melted plastic sample material is extruded out through a capillary tube of the neck mold.

The above prior art solutions have the following drawbacks: when a plastic sample material is molten, the plastic sample material can be adhered to the inside of the charging barrel and the inside of a capillary tube of the neck mold, because the inner diameter ratio of the charging barrel to the neck mold is small, a coking substance is easy to deposit and is generally difficult to clean, and the molten substance can be blocked, so that the test value is obviously reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a melt index appearance has and prevents that the solution from gluing at the inner wall of feed cylinder for outside the better extrusion feed cylinder of solution, and can install fast or dismantle the bush, thereby be convenient for carry out abluent effect to the bush.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a melt index meter comprising: a machine base; the charging barrel is arranged in the base; the material storage channel is vertically arranged in the charging barrel; a heater overlying an outer wall of the cartridge; and the setting is in feed cylinder upside, weight platform that is used for placing the weight, the lower extreme of weight platform extends to be provided with and inserts to hold the stripper bar in the material passageway, the stripper bar deviates from the one end of weight platform be provided with the material pushing component of feed cylinder inner wall looks butt, the bottom of feed cylinder is provided with the bush that is used for extrudeing the melt and flows out, will have been seted up to one side of frame the bush slides in or the roll-off the bar opening of frame, still be provided with on the frame a plurality of be used for with the fixed fastener of bush.

Through adopting above-mentioned technical scheme, when using the melt index appearance to test, heat the feed cylinder with the heater earlier, reach anticipated experimental temperature after, use the instrument with plastics sample material pour into holding in the material passageway of feed cylinder, with the instrument compaction back, insert the stripper bar again and hold in the material passageway, place the weight of certain weight at the weight bench, the mutual butt of the inner wall of material pushing part and feed cylinder on the stripper bar and feed cylinder this moment, to holding outside the better extrusion discharging cylinder of the solution in the material passageway, in order to prevent that the solution from gluing on the inner wall of feed cylinder, and simultaneously, strip opening and fastener have been seted up through the side at the frame, not only the fastener plays fixed effect to the bush, and can be convenient for carry out quick installation or dismantlement with the bush along the strip opening, thereby can wash the bush.

The utility model discloses further set up to: the pushing piece comprises a telescopic rod connected to one end of the extrusion rod; the material pushing head is fixed with the telescopic rod; and the telescopic spring is sleeved on the telescopic rod, and one end of the material pushing head, which deviates from the telescopic rod, is abutted against the inner wall of the material barrel.

Through adopting above-mentioned technical scheme, when pushing away the material pole and extrudeing the solution in the feed cylinder, the structure of the mutual butt of inner wall of material pushing head and feed cylinder can be better outside the solution extrusion ejection of compact section of thick bamboo to prevent that the solution from gluing on the inner wall of feed cylinder, simultaneously through the structure that sets up telescopic link and expanding spring, utilize the flexible performance that resets of expanding spring, can play certain effort to the material pushing head, thereby make the material pushing head extrude the solution better.

The utility model discloses further set up to: the die is characterized in that fixed sliding blocks are arranged on two sides of the die, a fixed guide rail in sliding connection with the fixed sliding blocks is arranged on one side of the machine base, and the die slides in or slides out of the machine base along the fixed guide rail.

Through adopting above-mentioned technical scheme, through fixed sliding block and fixed guide rail sliding connection's structure, can be convenient for along the fixed guide rail roll-off bar through-hole outside the bush to can conveniently install or dismantle the bush.

The utility model discloses further set up to: the fastening piece comprises a limiting block arranged on one side of the neck mold; and the lock rod is matched with the limiting block and is rotatably arranged on the base.

Through adopting above-mentioned technical scheme, through the structure of stopper and locking lever, can restrict the bush to reach the effect of fixed bush, also be convenient for dismantle the bush simultaneously, in order to wash or change the bush.

The utility model discloses further set up to: and one side of the mouth mold, which is close to the strip-shaped through opening, is hinged with a handle used for pulling the mouth mold out of the strip-shaped through opening.

Through adopting above-mentioned technical scheme, through setting up the handle, can be convenient for pull out the frame with the bush edgewise strip-shaped opening outside to can conveniently wash the bush.

The utility model discloses further set up to: the outer side of the heater is covered with an insulating layer for keeping the molten state of the solution in the charging barrel.

Through adopting above-mentioned technical scheme, through setting up the heat preservation, the fuse-element in the feed cylinder that can be convenient for keeps the molten state, also can play thermal-insulated effect simultaneously, in order to prevent that the feed cylinder is overheated and lead to scalding staff's accident.

The utility model discloses further set up to: and a material collecting box for placing a solution is arranged at the bottom of the machine base.

Through adopting above-mentioned technical scheme, receive the magazine through setting up, can be convenient for receive the material with the fuse-element that flows out in the feed cylinder to reduce the fuse-element and glue the condition on frame or workstation.

The utility model discloses further set up to: the feed cylinder is made of aluminum alloy.

Through adopting above-mentioned technical scheme, through the material with the feed cylinder use aluminum alloy, can utilize the characteristic that aluminum alloy heat conductivility is strong for the better molten state that keeps of fuse-element in the feed cylinder, thereby make measured data more accurate.

To sum up, the utility model discloses a beneficial technological effect does:

1. when a melt index meter is used for testing, a heater is firstly used for heating a charging barrel, after the expected testing temperature is reached, a tool is used for filling a plastic sample material into a material storage channel of the charging barrel, an extrusion rod is inserted into the material storage channel after the tool is used for compacting, weights with certain weight are placed on a weight table, a material pushing piece on the extrusion rod is abutted against the inner wall of the charging barrel, a solution in the material storage channel is better extruded outside the discharging barrel to prevent the solution from being adhered to the inner wall of the charging barrel, meanwhile, a strip-shaped through hole and a fastening piece are formed in the side face of a base, the fastening piece plays a fixing role on a neck mold, the neck mold can be conveniently and quickly mounted or dismounted along the strip-shaped through hole, and the neck mold can be cleaned;

2. the opening die can be conveniently pulled out of the base along the strip-shaped through hole by arranging the handle, so that the opening die can be conveniently cleaned;

3. through setting up the heat preservation, the fuse-element in the feed cylinder of can being convenient for keeps the molten state, also can play thermal-insulated effect simultaneously, in order to prevent that the feed cylinder is overheated and lead to scalding staff's accident.

Drawings

FIG. 1 is a schematic view of the overall structure of the melt index meter of the present invention;

FIG. 2 is a cross-sectional view of the cartridge, heater and insulation of the present invention;

FIG. 3 is a schematic structural view of the mouthpiece and the material pushing rod of the present invention;

FIG. 4 is an enlarged schematic view of portion B of FIG. 3;

fig. 5 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a machine base; 11. a strip-shaped through opening; 12. fixing the guide rail; 13. a lock lever; 2. a charging barrel; 21. a material storage channel; 3. a heater; 31. a heat-insulating layer; 4. a weight table; 5. an extrusion stem; 6. a neck ring mold; 61. fixing the sliding block; 62. a limiting block; 63. a handle; 7. a telescopic rod; 8. a material pushing head; 9. a tension spring; 10. and a material receiving box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a melt index meter, this melt index meter is under the regulation temperature condition, makes the testee reach the molten state with high temperature heating equipment, and the test of extruding is carried out through the aperture of certain diameter to the solution of this molten state under the weight load gravity of regulation, and this melt index meter is used for determining the fuse-element mass flow rate, fuse-element volume flow rate and the melt density of testee.

As shown in fig. 1 and 2, in this embodiment, the melt index meter includes a base 1, a cylinder 2 with a cylindrical structure is fixedly disposed inside the base 1, the cylinder 2 is made of aluminum alloy, and the characteristic of high heat conductivity of aluminum alloy can be utilized to keep the plastic sample material in the cylinder 2 in a molten state, so that the measurement data is more accurate. A material storage channel 21 is vertically arranged at the center of the charging barrel 2, and the material storage channel 21 penetrates through the charging barrel 2 and is used for placing a plastic sample material to be detected; the outer wall of the charging barrel 2 is connected with a plurality of heaters 3, the heaters 3 cover the outer side wall of the charging barrel 2, and plastic sample materials in the charging barrel 2 can be uniformly heated, so that the plastic sample materials reach a molten state.

Meanwhile, as shown in fig. 2, a heat insulation layer 31 is further arranged in the base 1, the heat insulation layer 31 covers the periphery of the heater 3, the heat insulation layer 31 and the heater 3 control the temperature inside the charging barrel 2, so that the plastic sample material reaches a molten state, according to the structure, the heat insulation layer 31 is arranged, the plastic sample material in the charging barrel 2 can be conveniently kept in the molten state, meanwhile, a heat insulation effect can be achieved, and accidents that workers are scalded due to overheating of the charging barrel 2 can be prevented.

As shown in fig. 3, in the present embodiment, an extrusion rod 5 is disposed on the upper side of the cartridge 2, a weight table 4 for placing a weight is fixedly mounted on the upper end of the extrusion rod 5, the lower end portion of the extrusion rod 5 can be inserted into the material storage channel 21, and a material pushing member is further connected to the lower end of the extrusion rod 5, and the material pushing member and the plastic sample material in a molten state in the material storage channel 21 are in contact with each other and extrude the plastic sample material in a molten state.

As shown in fig. 3 and 4, in the present embodiment, the pushing member includes: the telescopic rod 7 is telescopically connected with one end of the extrusion rod 5; a material pushing head 8 fixed with the telescopic rod 7; and the telescopic spring 9 is sleeved on the telescopic rod 7, and one end of the material pushing head 8 departing from the telescopic rod 7 is mutually abutted with the inner wall of the material barrel 2. When this extrusion ram 5 extrudees the plastics sample material of molten state in to feed cylinder 2, the mutual butt of inner wall of ejector pad 8 and feed cylinder 2, can be better outside the plastics sample material extrusion feed cylinder 2 of molten state, and this ejector pad 8 can prevent that the plastics sample material of molten state from gluing on the inner wall of feed cylinder 2, simultaneously through the structure that sets up telescopic link 7 and expanding spring 9, utilize the flexible performance that resets of expanding spring 9, can play certain effort and reaction force to ejector pad 8, thereby make ejector pad 8 extrude the plastics sample material of molten state better.

As shown in fig. 3, in this embodiment, a neck mold 6 is disposed at the lower side of the barrel 2, the neck mold 6 is in a rectangular structure, and the neck mold 6 is used for extruding and flowing the plastic sample material in a molten state out of the barrel 2, meanwhile, a material receiving box 10 for placing the plastic sample material in a molten state is disposed at the lower side of the neck mold 6, the material receiving box 10 can receive the melt flowing out of the barrel 2, so as to reduce the condition that the melt is adhered to the base 1 or the workbench, and the material receiving box 10 is designed in a detachable structure, so that the material receiving box 10 can be detached by sliding, and the material is poured and the material receiving box 10 is cleaned.

As shown in fig. 3, in the present embodiment, a strip-shaped through hole 11 is formed on one side surface of the base 1, the strip-shaped through hole 11 corresponds to one side surface of the neck mold 6, and the neck mold 6 can slide into or out of the base 1 along the strip-shaped through hole 11; more specifically, the equal fixedly connected with fixed sliding block 61 in both sides of this bush 6, and the fixed stationary rail 12 who is provided with this fixed sliding block 61 sliding connection in one side of frame 1, this bush 6 slides in or roll-off frame 1 along stationary rail 12, according to above-mentioned structure, through fixed sliding block 61 and fixed rail 12 sliding connection's structure, can be convenient for with bush 6 along stationary rail 12 roll-off bar through-hole outside, thereby can install or dismantle bush 6 fast, and then can be convenient for wash bush 6.

As shown in fig. 5, a plurality of fasteners for fixing the mouth mold 6 in the machine base 1 are further arranged on the machine base 1, and in the embodiment, two fasteners are arranged, and are respectively arranged on the upper side of the strip-shaped through opening 11 to limit and fix the mouth mold 6; specifically, the fastener includes: a stopper 62 mounted on one side surface of the die 6; and the locking lever 13 is matched with the limiting block 62, the locking lever 13 is hinged on the machine base 1, the locking lever 13 can rotate through a rotating shaft, and the locking lever 13 is abutted against the limiting block 62. According to the structure, the neck mold 6 can be limited through the structure of the limiting block 62 and the locking rod 13, so that the neck mold 6 is fixed, and meanwhile, the neck mold 6 is convenient to detach and clean or replace the neck mold 6.

Meanwhile, in this embodiment, in order to facilitate the drawing of the mouth mold 6 out of the base 1 along the strip-shaped through hole 11, the mouth mold 6 is close to one side of the strip-shaped through hole 11, and the handle 63 for drawing the mouth mold 6 out of the strip-shaped through hole 11 is hinged to the mouth mold 6, and by setting the handle 63, the mouth mold 6 can be conveniently drawn out of the base 1 along the strip-shaped through hole 11, so that the mouth mold 6 can be disassembled, and the mouth mold 6 can be conveniently cleaned.

The implementation principle of the embodiment is as follows: when a melt index meter is used for testing, the heater 3 is firstly used for heating the material cylinder 2, after the expected test temperature is reached, a tool is used for filling a plastic sample material into the material storage channel 21 of the material cylinder 2, the tool is used for compacting the plastic sample material, the extrusion rod 5 is then inserted into the material storage channel 21, a weight with a certain weight is placed on the weight table 4, the material pushing head 8 on the extrusion rod 5 is abutted against the inner wall of the material cylinder 2 at the moment, the plastic sample material in a molten state in the material storage channel 21 is better extruded out of the material cylinder 2, and finally the plastic sample material in the molten state falls into the material receiving box 10; when the neck mold 6 needs to be cleaned, the two locking rods 13 are firstly rotated upwards to unlock, then the handle 63 is held tightly, the neck mold 6 is pulled out of the machine base 1 along the strip-shaped through hole 11, and therefore the neck mold 6 can be detached to be cleaned.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A melt index meter comprising: a machine base (1); a charging barrel (2) arranged in the machine base (1); a material storage channel (21) vertically arranged in the charging barrel (2); a heater (3) covering the outer wall of the barrel (2); and set up feed cylinder (2) upside, weight platform (4) for placing the weight, its characterized in that, the lower extreme of weight platform (4) extends to be provided with insert to hold extrusion stem (5) in material passageway (21), extrusion stem (5) deviate from the one end of weight platform (4) be provided with feed cylinder (2) inner wall looks butt's material pushing part, the bottom of feed cylinder (2) is provided with be used for with bush (6) that the melt extrusion flows out, seted up on one side of frame (1) will bush (6) slide in or the roll-off bar opening (11) of frame (1), still be provided with on frame (1) a plurality of be used for with the fixed fastener of bush (6).

2. The melt index meter of claim 1, wherein the pusher comprises: a telescopic rod (7) connected to one end of the extrusion rod (5); a material pushing head (8) fixed with the telescopic rod (7); and the telescopic spring (9) is sleeved on the telescopic rod (7), and one end of the material pushing head (8) departing from the telescopic rod (7) is abutted against the inner wall of the charging barrel (2).

3. The melt index apparatus according to claim 1, wherein the fixed sliding blocks (61) are arranged on two sides of the neck mold (6), the fixed guide rail (12) connected with the fixed sliding blocks (61) in a sliding manner is arranged on one side of the machine base (1), and the neck mold (6) slides in or out of the machine base (1) along the fixed guide rail (12).

4. The melt index meter of claim 1, wherein the fastener comprises: a limiting block (62) arranged on one side of the neck mold (6); and the lock rod (13) is matched with the limiting block (62), and the lock rod (13) is rotatably arranged on the machine base (1).

5. Melt index meter according to claim 1, characterized in that the side of the die (6) close to the strip-shaped through opening (11) is hinged with a handle (63) for pulling the die (6) out of the strip-shaped through opening (11).

6. Melt index apparatus according to claim 1, characterized in that the heater (3) is covered on its outside with an insulating layer (31) for maintaining the melt in the barrel (2) in a molten state.

7. Melt index apparatus according to claim 1, characterized in that the base (1) is provided at its bottom with a receiving box (10) for the solution.

8. Melt index apparatus according to claim 1, characterized in that the barrel (2) is of aluminium alloy.