阅读说明：本技术 一种橡胶制品挤出机 (Rubber product extruder ) 是由 王永南 于 2021-09-28 设计创作，主要内容包括：本发明涉及一种橡胶制品挤出机,包括机架以及设置于机架上的料筒,料筒的内部设置有螺杆,料筒的一端设置有驱动螺杆转动的驱动机构,料筒的另一端设置有下料口,料筒的顶部一端设置有喂料机构；还包括两组固定板、两组液压缸、前半圆环、后半圆环和两组密封压板,料筒靠近喂料机构一端的前侧和后侧均设置有取放口,前半圆环和后半圆环可以围成一个完成清理环,清理环的内侧设置有与螺杆配合的内螺旋片,清理环的内侧设置有用于清理螺杆的第一橡胶刮板,清理环的外侧设置有用于清理料筒内侧壁的第二橡胶刮板,方便在使用过后对料筒内部螺杆表面残留的物料进行清理,操作简便,提高使用可靠性,保证设备的使用寿命。(The invention relates to a rubber product extruder which comprises a rack and a charging barrel arranged on the rack, wherein a screw rod is arranged in the charging barrel, one end of the charging barrel is provided with a driving mechanism for driving the screw rod to rotate, the other end of the charging barrel is provided with a discharging hole, and one end of the top of the charging barrel is provided with a feeding mechanism; still include two sets of fixed plates, two sets of pneumatic cylinders, preceding semicircle ring, latter half ring and two sets of sealing pressure plate, the feed cylinder is close to the front side and the rear side of feed mechanism one end and all is provided with gets and puts the mouth, preceding semicircle ring and latter half ring can enclose into one and accomplish the clearance ring, the inboard of clearance ring is provided with the interior spiral piece with screw rod complex, the inboard of clearance ring is provided with the first rubber scraper blade that is used for clearing up the screw rod, the outside of clearance ring is provided with the second rubber scraper blade that is used for clearing up the feed cylinder inside wall, conveniently clear up the remaining material in the inside screw rod surface of feed cylinder after using, and is simple to handle, and the service reliability is improved, and the service life of equipment is guaranteed.)

1. A rubber product extruder comprises a rack (1) and a charging barrel (2) arranged on the rack (1), wherein a screw (3) is arranged inside the charging barrel (2), one end of the charging barrel (2) is provided with a driving mechanism (4) for driving the screw (3) to rotate, the other end of the charging barrel (2) is provided with a discharging opening (5), and one end of the top of the charging barrel (2) is provided with a feeding mechanism (6); the automatic cleaning device is characterized by further comprising two groups of fixing plates (7), two groups of hydraulic cylinders (8), a front semicircular ring (9) and a rear semicircular ring (10), wherein the two groups of fixing plates (7) are fixedly arranged at the top end of the frame (1), the two groups of fixing plates (7) are respectively positioned in front of and behind the material cylinder (2), the two groups of hydraulic cylinders (8) are respectively arranged at one end, far away from the material cylinder (2), of the two groups of fixing plates (7), sealing pressing plates (11) are respectively arranged at the output ends of the two groups of hydraulic cylinders (8), the two groups of sealing pressing plates (11) are oppositely arranged in front and at the rear of the material cylinder, a taking and placing opening (12) is respectively arranged at the front side and at the rear side of one end, close to the feeding mechanism (6), of the material cylinder (2), the front semicircular ring (9) and the rear semicircular ring (10) can be respectively placed into the material cylinder (2) through the two groups of taking and placing openings (12), and the front semicircular ring (9) and the rear semicircular ring (10) can be enclosed into a complete cleaning ring (13), the inboard of clearance ring (13) is provided with screw rod (3) complex inside spiral piece (14) to be provided with in the inboard of clearance ring (13) and be used for the clearance first rubber scraper (15) of screw rod (3), the outside of clearance ring (13) is provided with and is used for the clearance second rubber scraper (16) of feed cylinder (2) inside wall, and the outside of preceding semicircle ring (9) and latter half ring (10) all is provided with spacing groove (17), be provided with two sets of spacing sand grip (18) on the inside wall of feed cylinder (2), two sets of spacing sand grip (18) respectively with come two sets of spacing groove (17) sliding fit.

2. A rubber product extruder as claimed in claim 1, wherein the end of the front half-ring (9) facing the rear half-ring (10) is provided with a first positioning post (19) and a first positioning hole (20), the end of the rear half-ring (10) facing the front half-ring (9) is provided with a second positioning post (21) and a second positioning hole (22), the second positioning post (21) is inserted into the first positioning hole (20), and the first positioning post (19) is inserted into the second positioning hole (22).

3. A rubber product extruder as claimed in claim 1, wherein said inner screw flights (14) are provided in two sets, said first squeegee (15) is located between said two sets of inner screw flights (14), and the end of the first squeegee (15) remote from said cleaning ring (13) abuts against the outside of the screw (3).

4. A rubber-product extruder according to claim 1, wherein said second rubber scraper (16) abuts against the inner side wall of said barrel (2) when said front half-ring (9) and said rear half-ring (10) enclose said cleaning ring (13).

5. A rubber product extruder as claimed in claim 1, wherein said two sets of limiting ribs (18) are arranged along the length of the barrel (2), and said two sets of limiting ribs (18) are arranged in a front-to-back opposing relationship.

6. A rubber-product extruder as claimed in claim 1, wherein said second squeegee (16) is located outside the cleaning ring (13) and adjacent to an end of said feed opening (5).

7. A rubber-product extruder according to claim 1, wherein said first rubber blade (15) is arranged helically.

8. The rubber product extruder according to claim 1, wherein the sealing grooves (23) are formed on the outer sides of the two sets of the taking and placing openings (12), the sealing pressing plate (11) comprises a first semicircular plate (24) matched with the sealing grooves (23) and a second semicircular plate (25) installed on the inner side of the first semicircular plate (24) and matched with the taking and placing openings (12), and when the first semicircular plate (24) is located in the sealing grooves (23), the concave surface of the inner side of the second semicircular plate (25) is flush with the inner side wall of the charging barrel (2).

9. A rubber product extruder as claimed in any one of claims 1 to 8, wherein the concave surface of the first semicircular plate (24) is provided with an auxiliary positioning rib (26) which is engaged with the limiting groove (17).

10. A rubber product extruder as claimed in any one of claims 1 to 9, wherein a frame-shaped sealing strip (27) is provided on the side of the first semicircular plate (24) facing the barrel (2), said frame-shaped sealing strip (27) being located outside the access opening (12).

Technical Field

The invention relates to the technical field of extruders, in particular to a rubber product extruder.

Background

The rubber extruder, a basic device in the rubber industry, is one of the key devices affecting the quality of products, and plays a very important role in the production process of tires and rubber products. The development of foreign rubber extruders is experienced by rubber products in stages such as plunger extruders, screw type hot feed extruders, common cold feed extruders, main and auxiliary thread cold feed extruders, cold feed exhaust extruders, pin cold feed extruders, compound extruders and the like.

Rubber extruder is after using, often can remain some materials on feed cylinder and screw rod, the material of remaining in the feed cylinder can lead to the fact a damage to equipment itself, influence the life of equipment, influence next use, at present to the clearance of the inside residual material of feed cylinder, often adopt polyethylene plastics to extrude at last and clear up feed cylinder and screw rod, but this kind of cleaning performance is relatively poor, still dismantle the feed cylinder is whole with the feed cylinder, clear up the inside, the operation is very loaded down with trivial details, lead to using the reliability lower.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the rubber product extruder which is convenient for cleaning materials remained on the surface of the screw rod in the charging barrel after use, is simple and convenient to operate, improves the use reliability and ensures the service life of equipment.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a rubber product extruder comprises a rack and a charging barrel arranged on the rack, wherein a screw is arranged in the charging barrel, one end of the charging barrel is provided with a driving mechanism for driving the screw to rotate, the other end of the charging barrel is provided with a discharging hole, and one end of the top of the charging barrel is provided with a feeding mechanism; the feeding mechanism comprises a feeding mechanism, and is characterized by further comprising two groups of fixed plates, two groups of hydraulic cylinders, a front semicircular ring and a rear semicircular ring, wherein the two groups of fixed plates are fixedly arranged at the top end of a frame, the two groups of fixed plates are respectively positioned in front of and behind a charging barrel, the two groups of hydraulic cylinders are respectively arranged at one ends, far away from the charging barrel, of the two groups of fixed plates, sealing press plates are respectively arranged at output ends of the two groups of hydraulic cylinders, the two groups of sealing press plates are oppositely arranged in front of and behind the charging barrel, a taking and placing opening is respectively formed in the front side and the rear side of one end, close to the feeding mechanism, of the charging barrel, the front semicircular ring and the rear semicircular ring can be respectively placed into the charging barrel through the two groups of taking and placing openings, the front semicircular ring and the rear semicircular ring can be enclosed into a cleaning ring, an inner spiral sheet matched with a screw rod is arranged on the inner side of the cleaning ring, a first rubber scraper blade used for cleaning the screw rod is arranged on the inner side of the cleaning ring, and a second rubber scraper blade used for cleaning the inner side wall of the charging barrel is arranged on the outer side of the cleaning ring, the outside of preceding semicircle ring and latter half ring all is provided with the spacing groove, be provided with two sets of spacing sand grips on the inside wall of feed cylinder, two sets of spacing sand grips respectively with come two sets of spacing groove sliding fit.

Preferably, preceding semicircle ring orientation the tip of latter semicircle ring is provided with first reference column and first locating hole, latter semicircle ring orientation the tip of preceding semicircle ring is provided with second reference column and second locating hole, the second reference column inserts in the first locating hole, first locating column inserts in the second locating hole.

Preferably, the inner spiral sheets are provided with two groups, the first rubber scraper is positioned between the two groups of inner spiral sheets, and one end, far away from the cleaning ring, of the first rubber scraper is tightly attached to the outer side of the screw.

Preferably, when the front semicircular ring and the rear semicircular ring enclose the cleaning ring, the second rubber scraper is tightly attached to the inner side wall of the charging barrel.

Preferably, the length direction setting of feed cylinder is all followed to two sets of spacing sand grips to relative setting around two sets of spacing sand grips.

Preferably, the second squeegee is located outside the cleaning ring and adjacent to one end of the feed opening.

Preferably, the first squeegee is provided in a spiral shape.

Preferably, two sets of get the outside of putting the mouth and all be provided with the seal groove, sealing plate include with seal groove matched with first semicircle board and install in first semicircle inboard and with get and put a mouthful complex second semicircle board, work as first semicircle board is located when in the seal groove, the inboard concave surface of second semicircle board is flat mutually with the inside wall of feed cylinder.

Preferably, an auxiliary positioning protruding strip matched with the limiting groove is arranged on the concave surface of the inner side of the first semicircular plate.

Preferably, one side of the first semicircular plate facing the charging barrel is provided with a frame-shaped sealing strip, and the frame-shaped sealing strip is positioned on the outer side of the taking and placing opening.

(III) advantageous effects

Compared with the prior art, the invention provides a rubber product extruder which has the following beneficial effects:

1. the rubber product extruder is characterized in that after the extruder is used, a front semicircular ring and a rear semicircular ring are respectively placed into a charging barrel through two groups of taking and placing openings, two groups of sealing pressing plates are respectively pushed through two groups of hydraulic cylinders to enable the front semicircular ring and the rear semicircular ring to be butted to form a cleaning ring, limiting grooves on the outer sides of the front semicircular ring and the rear semicircular ring are respectively in sliding fit with two groups of limiting convex strips, an inner spiral sheet is matched with a screw rod in a forward rotating mode, the cleaning ring is enabled to move towards the direction of the material discharging opening in the charging barrel through an inner spiral sheet, residual materials on the outer side of the screw rod are cleaned through a first rubber scraper, materials on the inner side wall of the charging barrel are cleaned through a second rubber scraper, so that the materials in the charging barrel are pushed towards the direction of the material discharging opening and are led out of the material discharging opening, then the screw rod rotates reversely, the cleaning ring is returned to the taking and placing openings, and the cleaning can be repeatedly cleaned for a plurality of times, the residual materials on the surface of the screw rod in the charging barrel can be conveniently cleaned after the charging barrel is used, the operation is simple and convenient, the use reliability is improved, and the service life of the equipment is ensured;

2. this rubber products extruder, during normal use, will preceding semicircle ring and latter semicircle ring take out from getting and put mouthful department, will get through sealed clamp plate and put mouthful sealed live, guarantee to carry out normal operation.

Drawings

FIG. 1 is a schematic perspective view of a cleaning ring of the present invention inserted into the interior of a cartridge;

FIG. 2 is a schematic perspective view of the cleaning ring of the present invention after being removed from the charging barrel;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic perspective view of the cleaning ring of the present invention;

FIG. 5 is a schematic perspective view of the front semicircular plate of the present invention;

FIG. 6 is a schematic perspective view of the rear semi-circular plate of the present invention;

FIG. 7 is a schematic perspective view of the sealing platen of the present invention;

FIG. 8 is a schematic cross-sectional view of the interior of the cartridge of the present invention;

in the drawings, the reference numbers: 1. a frame; 2. a charging barrel; 3. a screw; 4. a drive mechanism; 5. a feeding port; 6. a feeding mechanism; 7. a fixing plate; 8. a hydraulic cylinder; 9. a front semicircular ring; 10. a rear semi-circular ring; 11. sealing the pressure plate; 12. a taking and placing port; 13. cleaning a ring; 14. an inner spiral sheet; 15. a first rubber blade; 16. a second rubber blade; 17. a limiting groove; 18. limiting convex strips; 19. a first positioning post; 20. a first positioning hole; 21. a second positioning column; 22. a second positioning hole; 23. a sealing groove; 24. a first semi-circular plate; 25. a second semicircular plate; 26. auxiliary positioning convex strips; 27. a frame-shaped sealing strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the rubber product extruder of the present invention includes a frame 1 and a barrel 2 disposed on the frame 1, a screw 3 is disposed inside the barrel 2, a driving mechanism 4 for driving the screw 3 to rotate is disposed at one end of the barrel 2, a discharging opening 5 is disposed at the other end of the barrel 2, and a feeding mechanism 6 is disposed at one end of the top of the barrel 2; the feeding mechanism comprises a frame 1, and is characterized by further comprising two groups of fixing plates 7, two groups of hydraulic cylinders 8, a front semicircular ring 9 and a rear semicircular ring 10, wherein the two groups of fixing plates 7 are fixedly arranged at the top end of the frame 1, the two groups of fixing plates 7 are respectively positioned in front of and behind a material cylinder 2, the two groups of hydraulic cylinders 8 are respectively arranged at one end of the two groups of fixing plates 7 far away from the material cylinder 2, the output ends of the two groups of hydraulic cylinders 8 are respectively provided with a sealing pressing plate 11, the two groups of sealing pressing plates 11 are arranged in a front-rear opposite mode, the front side and the rear side of the material cylinder 2 close to one end of the feeding mechanism 6 are respectively provided with a taking and placing opening 12, the front semicircular ring 9 and the rear semicircular ring 10 can be respectively placed into the material cylinder 2 through the two groups of taking and placing openings 12, the front semicircular ring 9 and the rear semicircular ring 10 can form a complete cleaning ring 13, the inner spiral sheet 14 matched with a screw rod 3 is arranged on the inner side of the cleaning ring 13, and a first rubber scraper 15 used for cleaning the screw rod 3 is arranged on the inner side of the cleaning ring 13, the outside of clearance ring 13 is provided with and is used for the clearance the second rubber scraper 16 of 2 inside walls of feed cylinder, and the outside of preceding semicircle ring 9 and latter semicircle ring 10 all is provided with spacing groove 17, be provided with two sets of spacing sand grips 18 on the inside wall of feed cylinder 2, two sets of spacing sand grips 18 respectively with come two sets of spacing groove 17 sliding fit.

After the extruder is used, the front semicircular ring 9 and the rear semicircular ring 10 are respectively placed into the charging barrel 2 through two groups of taking and placing openings 12, two groups of sealing pressing plates 11 are respectively pushed through two groups of hydraulic cylinders 8, so that the front semicircular ring 9 and the rear semicircular ring 10 are butted to form a cleaning ring 13, the limiting grooves 17 on the outer sides of the front semicircular ring 9 and the rear semicircular ring 10 are respectively in sliding fit with two groups of limiting convex strips 18, the forward rotation of the screw rod 3 is matched with the screw rod 3 through the inner spiral sheet 14, so that the cleaning ring 13 moves towards the direction of the discharging opening 5 in the charging barrel 2, the residual material on the outer side of the screw rod 3 is cleaned through the first rubber scraper 15, the material on the inner side wall of the charging barrel 2 is cleaned through the second rubber scraper 16, so that the material in the charging barrel 2 is pushed towards the direction of the discharging opening 5 and is guided out from the discharging opening 5, and then the cleaning ring 13 reversely rotates through the screw rod 3, so that the cleaning ring 13 returns to the taking and placing openings 12, the cleaning machine can clean for multiple times in a reciprocating manner, so that the residual materials on the surface of the screw rod 3 in the charging barrel 2 can be cleaned conveniently after use, the operation is simple and convenient, the use reliability is improved, and the service life of the equipment is ensured; during normal use, the front semicircular ring 9 and the rear semicircular ring 10 are taken out from the taking and placing opening 12, and the taking and placing opening 12 is sealed through the sealing pressing plate 11, so that normal operation is guaranteed.

Referring to fig. 3 to 5, in the embodiment of the present application, a first positioning column 19 and a first positioning hole 20 are disposed at an end of the front semicircular ring 9 facing the rear semicircular ring 10, a second positioning column 21 and a second positioning hole 22 are disposed at an end of the rear semicircular ring 10 facing the front semicircular ring 9, the second positioning column 21 is inserted into the first positioning hole 20, and the first positioning column 19 is inserted into the second positioning hole 22.

Insert in second locating hole 22 through first reference column 19, second reference column 21 inserts in first locating hole 20 to piece into firm clearance ring 13 with preceding semicircle ring 9 and back semicircle ring 10, guarantee that clearance ring 13 can be along with screw rod 3's rotation in order to clear up the inside of feed cylinder 2 at the inside lateral shifting of feed cylinder 2.

Specifically, two sets of first positioning columns 19, two sets of second positioning columns 21, two sets of first positioning holes 20 and two sets of second positioning holes 22 are arranged, each end portion of the front semicircular ring 9 is provided with one first positioning column 19 and one first positioning hole 20, and each end portion of the rear semicircular ring 10 is provided with one second positioning column 21 and one second positioning hole 22.

In the embodiment of the present application, the inner spiral sheets 14 are provided with two sets, the first rubber scraper 15 is located between the two sets of inner spiral sheets 14, and one end of the first rubber scraper 15, which is far away from the cleaning ring 13, is tightly attached to the outer side of the screw 3.

The two groups of inner spiral sheets 14 are arranged, so that the screw rod 3 can drive the cleaning ring 13 to move transversely when rotating in the forward direction and the reverse direction, and the distance between the two groups of inner spiral sheets 14 is smaller than the minimum screw pitch of the screw rod 3.

Because the screw pitch and the degree of depth of the different positions of screw rod 3 are different, adopt to have elastic first rubber scraper 15 to clear up the outside of screw rod 3, can keep first rubber scraper 15 to paste closely with the outside clearance of screw rod 3 all the time to guarantee the clearance effect to 3 clearance department materials of screw rod.

In the embodiment of the present application, when the front semicircular ring 9 and the rear semicircular ring 10 enclose the cleaning ring 13, the second rubber scraper 16 is tightly attached to the inner side wall of the charging barrel 2.

The second squeegee 16 can sufficiently clean the inner side wall of the cartridge 2 while ensuring that the cleaning ring 13 moves laterally inside the cartridge 2.

In the embodiment of the present application, the length direction of the charging barrel 2 is all followed to two sets of limiting convex strips 18, and the two sets of limiting convex strips 18 are arranged front and back relatively.

Through the cooperation of spacing sand grip 18 with spacing groove 17, guarantee preceding semicircle board and latter half plectane can be along with screw rod 3 at the inside lateral shifting of feed cylinder 2.

Optionally, the limiting convex strips 18 are of a semicircular structure, the limiting convex strips 18 are arranged on the inner side wall of the charging barrel 2, the material clamping situation cannot occur, and the cleaning ring 13 can clean the materials attached to the limiting convex strips 18 through the limiting grooves 17 when moving transversely.

In this application, when normally extruding the operation, the material is carried with the mode of spiral along with screw rod 3, makes the material overturn when carrying through spacing sand grip 18, improves the homogeneity of material.

In the embodiment of the present application, the second squeegee 16 is located outside the cleaning ring 13 and adjacent to one end of the feed opening 5.

Ensure that the cleaning ring 13 can scrape and convey the material on the inner side wall of the charging barrel 2 towards the feed opening 5 when moving transversely.

In the present embodiment, the first squeegee 15 is provided in a spiral shape.

Set first rubber scraper 15 to the heliciform, increase the area of contact in first rubber scraper 15 and the screw rod 3 outside clearance, further guarantee the clearance effect to the screw rod 3 clearance material.

Referring to fig. 7, in the embodiment of the present application, a sealing groove 23 is formed on each of the outer sides of the two sets of the opening 12, the sealing pressing plate 11 includes a first semicircular plate 24 engaged with the sealing groove 23 and a second semicircular plate 25 installed on the inner side of the first semicircular plate 24 and engaged with the opening 12, and when the first semicircular plate 24 is located in the sealing groove 23, the concave surface of the inner side of the second semicircular plate 25 is flush with the inner side wall of the charging barrel 2.

During the normal operation of extruding, take out preceding semicircle ring 9 and latter semicircle ring 10, then promote sealed clamp plate 11 through pneumatic cylinder 8 for sealed clamp plate 11's first semicircle board 24 is located seal groove 23, and the interior concave surface of second semicircle board 25 is flat mutually with the inner wall of feed cylinder 2, makes things convenient for the material to carry in the inside of feed cylinder 2.

In the embodiment of the present application, an auxiliary positioning protruding strip 26 matched with the limiting groove 17 is disposed on the concave surface of the first semicircular plate 24.

When putting into preceding semicircle board and latter half circular plate, through the cooperation of assistance-localization real-time sand grip 26 with the spacing groove 17 in preceding semicircle ring 9 and the latter half circular ring 10 outside, conveniently clear up preceding semicircle ring 9 and latter half circular ring 10, inside seal pressing plate 11 was impressed preceding semicircle ring 9 and latter half circular ring 10 into feed cylinder 2, assistance-localization real-time sand grip 26 linked to each other with spacing sand grip 18, conveniently clears up ring 13 and carries out lateral shifting in the inside of feed cylinder 2.

In the embodiment of the present application, a frame-shaped sealing strip 27 is disposed on one side of the first semicircular plate 24 facing the charging barrel 2, and the frame-shaped sealing strip 27 is located on the outer side of the access opening 12.

The sealing performance of the taking and placing opening 12 is ensured by the close adhesion of the frame-shaped sealing strip 27 on the inner side of the first semi-circular plate 24 and the sealing groove 23.

When the extruder is used, the front semicircular ring 9 and the rear semicircular ring 10 are respectively placed into the charging barrel 2 through the two groups of taking and placing openings 12 after the extruder is used, the two groups of sealing pressing plates 11 are respectively pushed through the two groups of hydraulic cylinders 8, so that the front semicircular ring 9 and the rear semicircular ring 10 are butted to form the cleaning ring 13, the limiting grooves 17 at the outer sides of the front semicircular ring 9 and the rear semicircular ring 10 are respectively in sliding fit with the two groups of limiting convex strips 18, the forward rotation of the screw rod 3 is matched with the screw rod 3 through the inner spiral sheet 14, so that the cleaning ring 13 moves towards the direction of the discharging opening 5 in the charging barrel 2, the residual materials at the outer side of the screw rod 3 are cleaned through the first rubber scraper 15, the materials on the inner side wall of the charging barrel 2 are cleaned through the second rubber scraper 16, the materials in the charging barrel 2 are pushed towards the direction of the discharging opening 5 and are led out from the discharging opening 5, then the cleaning ring 13 reversely rotates through the screw rod 3, so that the cleaning ring 13 returns to the taking and placing openings 12, the cleaning machine can clean for multiple times in a reciprocating manner, so that the residual materials on the surface of the screw rod 3 in the charging barrel 2 can be cleaned conveniently after use, the operation is simple and convenient, the use reliability is improved, and the service life of the equipment is ensured; during normal use, the front semicircular ring 9 and the rear semicircular ring 10 are taken out from the taking and placing opening 12, and the taking and placing opening 12 is sealed through the sealing pressing plate 11, so that normal operation is guaranteed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.