CN215473000U - Extruding machine for cable production - Google Patents

Abstract

An extruding machine for cable production comprises a base, an extruding machine main body and a shaping and cooling mechanism; the main body of the plastic extruding machine is fixedly arranged on the top surface of the base through a plurality of supporting plates; a discharge hole of the plastic extruding machine main body is formed in the bottom and communicated with a discharge pipe; a discharge hole of the discharge pipe is horizontally arranged; the shaping and cooling mechanism is fixedly arranged at one end of the top surface of the base, which is close to the discharge hole of the discharge pipe; the shaping and cooling mechanism comprises a shaping component and a cooling component; the cooling assembly is positioned on one side of the shaping assembly, which is far away from the discharge pipe; the utility model can quickly shape and cool the wrapping layer outside the cable just after the cable is extruded out of the plastic extruding machine, so that the wrapping layer is more uniform, the quality of the cable is improved, the influence of heating on the motor can be reduced, the plastic extruding machine can work for a longer time, and the working efficiency is improved.

Description

Extruding machine for cable production

Technical Field

The utility model relates to the technical field of plastic extruders, in particular to a plastic extruder for cable production.

Background

The extruder is a device for melting a plastic by heating and extruding the plastic through a discharge port having a certain shape, and is generally called an extruder as long as the device can melt and extrude the plastic by heating, and the extruder generally includes an extrusion mechanism, a heating mechanism, a connecting member, and the like.

In the existing plastic extruding machine for producing the cable, molten plastic is extruded and wrapped on the cable when the plastic extruding machine is used, and then the plastic in a colloid state is introduced into a water tank to be cooled and shaped, so that the plastic just coming out of the plastic extruding machine is still in an unstable state and is likely to deform before entering the water tank, the cable is wrapped unevenly, in addition, the cable needs to enter the water tank for a long distance before entering the water tank so as not to bend the cable, and due to the viscosity of the plastic in the colloid state, the cable is likely to be stained with dirt; cable quality is affected; therefore, it is desirable to design an extruder that allows the wrapping of the cable to be immediately cooled and set.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cable production plastic extruding machine which can enable a cable to be uniformly wrapped and rapidly cooled and improve the quality of the cable.

A cable production plastic extruding machine comprises a base, a plastic extruding machine main body and a shaping and cooling mechanism; the main body of the extruding machine is fixedly arranged on the top surface of the base through a plurality of supporting plates; a discharge hole of the plastic extruding machine main body is formed in the bottom and communicated with a discharge pipe; a discharge hole of the discharge pipe is horizontally arranged; the shaping and cooling mechanism is fixedly arranged at one end, close to the discharge hole of the discharge pipe, of the top surface of the base;

the shaping and cooling mechanism comprises a fixing plate, a shaping assembly and a cooling assembly; the shaping assembly and the cooling assembly are both fixedly arranged on the fixing plate; the fixed plate is vertically welded on the top surface of the base and is parallel to the discharge hole of the discharge pipe; the shaping assembly comprises an upper rotating shaft and a lower rotating shaft which are rotatably arranged on the fixing plate; the upper rotating shaft and the lower rotating shaft are perpendicular to the fixed plate and are positioned in the same vertical plane; the upper rotating shaft and the lower rotating shaft penetrate through the fixed plate and are respectively and fixedly provided with an upper shaping wheel and a lower shaping wheel at one end close to the discharge pipe; an upper gear and a lower gear are respectively fixedly mounted at one ends of the upper rotating shaft and the lower rotating shaft, which are far away from the discharge pipe; the upper shaping wheel is abutted with the lower shaping wheel; the upper gear is meshed with the lower gear; the lower gear is connected with a driving motor in a transmission way.

Preferably, the circumferential walls of the upper shaping wheel and the lower shaping wheel are provided with annular grooves with the same size; the cross section of the ring groove is semicircular; the circular section formed by combining the upper shaping wheel and the annular groove formed in the peripheral wall of the lower shaping wheel is just opposite to the discharge pipe.

Preferably, the cooling assembly comprises a water pipe; one end of the water pipe is fixedly arranged at the top end of the fixing plate and horizontally extends to the upper part of the axis of the discharge pipe; the bottom of the water pipe is provided with a spray head; a nozzle of the spray head faces downwards and is opposite to the axis of the discharge pipe; a water tank is arranged on the top surface of the base and is positioned right below the water pipe; a water pump is fixedly arranged in the water tank; the other end of the water pipe extends downwards into the water tank and is communicated with the water pump.

Preferably, the extruder body comprises a feeding motor and a horizontally arranged feeding barrel; the top of one end of the feeding cylinder is communicated with a stirrer; a main rotating shaft is coaxially arranged in the feeding cylinder; the main rotating shaft is rotatably connected with two ends of the feeding cylinder; one end of the main rotating shaft, which is close to the stirrer, penetrates through the end face of the feeding cylinder and is in transmission connection with the feeding motor; the peripheral wall of the main rotating shaft is welded with a spiral plate along the length direction; a wiring pipe is horizontally arranged below the feeding cylinder; the wiring pipe is coaxially arranged with a discharge hole of the discharge pipe; one end of the routing pipe penetrates through the discharge pipe and extends outwards to be flush with the end face of the discharge port of the discharge pipe; the other end of the wiring pipe penetrates through the supporting plate and extends out of the base.

Preferably, a cooling and heat insulating mechanism is further installed between the feeding motor and the main rotating shaft; the cooling and heat insulation mechanism comprises a gearbox; a first partition plate and a second partition plate are fixedly arranged in the gearbox; the first partition plate and the second partition plate divide the interior of the gearbox into a first water cavity, a gear cavity and a second water cavity; the first water cavity and the second water cavity are respectively positioned at two sides of the gear cavity; the main rotating shaft penetrates through the first water cavity and extends into the gear cavity; a first gear is fixedly arranged on the part of the main rotating shaft, which is positioned in the gear cavity; an output shaft of the feeding motor penetrates through the second water cavity and extends into the gear cavity, and a second gear is fixedly mounted on the part, located in the gear cavity, of the output shaft; the first gear and the second gear are meshed.

Preferably, an opening and closing mechanism is installed between the stirrer and the feeding cylinder; the opening and closing mechanism comprises a baffle and an electric push rod; the baffle is horizontally arranged in a discharge port at the bottom end of the stirrer in a sliding manner; one side of the baffle penetrates through the inner wall of the discharge hole of the stirrer and is fixedly connected with the output end of the electric push rod.

Preferably, the heater is fixedly mounted on the peripheral wall of the feeding cylinder.

Preferably, a guide plate is fixedly installed at a position right above the discharge pipe in the feeding barrel.

Preferably, the top surface of the stirrer is provided with a feed inlet.

Preferably, the upper sizing wheel and the lower sizing wheel are the same in shape and size; the upper gear and the lower gear are the same in shape and size.

The utility model discloses the following technical effects:

(1) the utility model can quickly shape and cool the wrapping layer outside the cable just coming out of the plastic extruding machine, so that the wrapping layer is more uniform and the quality of the cable is improved;

(2) the utility model can reduce the influence of heating on the motor, so that the plastic extruding machine can work for a longer time, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a top view of the present invention;

FIG. 2 is a cross-sectional view of the utility model A-A;

FIG. 3 is a side view of the present invention;

FIG. 4 is a schematic view of a modular assembly of the present invention;

FIG. 5 is a schematic view of a cooling and heat insulating mechanism according to the present invention.

Wherein:

1. a base; 2. a support plate; 3. a wiring pipe; 4. a feed motor; 5. an output shaft; 6. a gearbox; 7. an electric push rod; 8. a stirrer; 9. a feed inlet; 10. a baffle plate; 11. a heater; 12. a spiral plate; 13. a main rotating shaft; 14. a baffle; 15. a fixing plate; 16. a spray head; 17. a water pipe; 18. an upper shaping wheel; 19. a lower shaping wheel; 20. a water pump; 21. a pool; 22. a discharge pipe; 23. an upper gear; 24. a lower gear; 25. a drive motor; 26. an upper rotating shaft; 27. a lower rotating shaft; 28. a first gear; 29. a second gear; 30. a feed cylinder; 31. a first water chamber; 32. a gear cavity; 33. a second water chamber; 34. a first separator; 35. a second separator.

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.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-5, an extruder for cable production comprises a base 1, an extruder body and a shaping and cooling mechanism; the main body of the plastic extruding machine is fixedly arranged on the top surface of the base 1 through a plurality of supporting plates 2; the discharge hole of the main body of the plastic extruding machine is arranged at the bottom and communicated with a discharge pipe 22; the discharge hole of the discharge pipe 22 is horizontally arranged; the shaping and cooling mechanism is fixedly arranged at one end of the top surface of the base 1, which is close to the discharge hole of the discharge pipe 22;

the shaping and cooling mechanism comprises a fixing plate 15, a shaping assembly and a cooling assembly; the shaping component and the cooling component are both fixedly arranged on the fixing plate 15; the fixed plate 15 is vertically welded on the top surface of the base 1 and is parallel to the discharge hole of the discharge pipe 22; the shaping assembly comprises an upper rotating shaft 26 and a lower rotating shaft 27 which are rotatably arranged on the fixing plate 15; the upper rotating shaft 26 and the lower rotating shaft 27 are perpendicular to the fixed plate 15 and are positioned in the same vertical plane; the upper rotating shaft 26 and the lower rotating shaft 27 penetrate through the fixing plate 15, and one ends of the fixing plates, which are close to the discharge pipe 22, are fixedly provided with an upper sizing wheel 18 and a lower sizing wheel 19 respectively; an upper gear 23 and a lower gear 24 are respectively fixedly arranged at one ends of the upper rotating shaft 26 and the lower rotating shaft 27 far away from the discharge pipe 22; the peripheral walls of the upper shaping wheel 18 and the lower shaping wheel 19 are abutted; the upper gear 23 and the lower gear 24 are meshed; the lower gear 24 is connected with a driving motor 25 in a transmission way.

The driving motor 25 is fixedly arranged on the top surface of the base 1; the upper shaping wheel 18 and the lower shaping wheel 19 are respectively positioned at the upper side and the lower side of the discharge hole axis of the discharge pipe 22 and positioned in the same vertical plane; when the raw material melted into the gel shape comes out from the discharging pipe 22, the raw material can smoothly enter between the upper sizing wheel 18 and the lower sizing wheel 19, thereby carrying out extrusion sizing.

In a further optimized scheme, annular grooves with the same size are formed in the peripheral walls of the upper shaping wheel 18 and the lower shaping wheel 19; the cross section of the ring groove is semicircular; the circular section formed by combining annular grooves formed in the peripheral walls of the upper shaping wheel 18 and the lower shaping wheel 19 is opposite to the discharge pipe 22; the circular arc part in the ring groove is close to the circle centers of the upper shaping wheel 18 and the lower shaping wheel 19, and the ring groove shape of the ring groove of the upper shaping wheel 18 and the ring groove shape of the lower shaping wheel 19 are the same in size and are positioned in the same vertical plane; thereby extruding the jelly-like raw material from the discharge pipe 22 to be circular in cross section.

In a further optimized scheme, the cooling assembly comprises a water pipe 17; one end of the water pipe 17 is fixedly arranged at the top end of the fixing plate 15 and horizontally extends to the upper part of the axis of the discharge pipe 22; the bottom of the water pipe is provided with a spray head 16; the nozzle of the spray head 16 faces downwards and is opposite to the axis of the discharge pipe 22; a water pool 21 is arranged on the top surface of the base 1 and right below the water pipe 17; a water pump 20 is fixedly arranged in the water pool; the other end of the water pipe 17 extends down into the sump 21 and communicates with the water pump 20.

The water pipe 17 is limited on one side of the upper shaping wheel 18 and the lower shaping wheel 19 which is far away from the discharge pipe 22, so that the extruded and formed colloidal raw material can be cooled and shaped, the water pump 20 can pump water from the water tank 21 and spray the water from the spray head 16, the sprayed water cools the colloidal raw material and then falls into the water tank 21, and the water can be recycled.

In a further optimized scheme, the extruder main body comprises a feeding motor 4 and a horizontally arranged feeding barrel 30; the top of one end of the feeding cylinder 30 is communicated with a stirrer 8; a main rotating shaft 13 is coaxially arranged in the feeding cylinder 30; the main rotating shaft 13 is rotatably connected with two ends of the feeding cylinder 30; one end of the main rotating shaft 13 close to the stirrer 8 penetrates through the end face of the feeding cylinder 30 and is in transmission connection with the feeding motor 4; the circumferential wall of the main rotating shaft 13 is welded with a spiral plate 12 along the length direction; a wiring pipe 3 is horizontally arranged below the feeding cylinder 30; the wiring pipe 3 and the discharge hole of the discharge pipe 22 are arranged coaxially; one end of the wiring pipe 3 penetrates through the discharge pipe 22 and extends outwards to be flush with the discharge port end face of the discharge pipe 22; the other end of the wiring pipe 3 penetrates through the supporting plate 2 and extends out of the base 1.

The wire feeding pipe 3 and the discharge hole of the discharge pipe 22 are coaxially arranged, so that the colloidal raw materials can be uniformly wrapped on the outer side of the cable; and a mechanical sealing element is arranged at the position where the routing pipe 3 penetrates through the discharge pipe 22, so that raw materials are prevented from leaking.

In a further optimized scheme, a cooling and heat-insulating mechanism is also arranged between the feeding motor 4 and the main rotating shaft 13; the cooling and heat insulation mechanism comprises a gearbox 6; a first clapboard 34 and a second clapboard 35 are fixedly arranged in the gearbox 6; the first partition plate 34 and the second partition plate 35 divide the interior of the gearbox 6 into a first water cavity 31, a gear cavity 32 and a second water cavity 33; the first water cavity 31 and the second water cavity 33 are respectively positioned at two sides of the gear cavity 32; the main rotating shaft 13 penetrates through the first water cavity 31 and extends into the gear cavity 32; a first gear 28 is fixedly arranged on the part of the main rotating shaft 13, which is positioned in the gear cavity 32; an output shaft 5 of the feeding motor 4 penetrates through the second water cavity 33 and extends into the gear cavity 32, and a part of the output shaft 5, which is positioned in the gear cavity 32, is fixedly provided with a second gear 29; the first gear 28 and the second gear 29 are meshed; the feeding motor 4 is fixedly arranged on the outer wall of the gearbox 6.

According to the heat exchanger, the main rotating shaft 13 is not directly connected with the feeding motor 4, but is connected through the gear, so that the heat transfer speed can be reduced, the torque output by the feeding motor 4 can be reduced, and the heating is reduced; after the first water cavity 31 and the second water cavity 33 are filled with water, the heat of the main rotating shaft can be absorbed, the heat transfer is reduced, and the influence of the heat on the feeding motor 4 is reduced.

In another embodiment of the present application, the first water chamber 31 and the second water chamber 33 are provided with a water inlet and a water outlet, the water inlet is communicated with the water pump 20, and the water outlet is communicated with the water tank 21; therefore, water in the first water cavity 31 and the second water cavity 33 can be replaced, and the cooling effect is guaranteed.

In a further optimized scheme, an opening and closing mechanism is arranged between the stirrer 8 and the feeding cylinder 30; the opening and closing mechanism comprises a baffle plate 10 and an electric push rod 7; the baffle 10 is horizontally arranged in a discharge port at the bottom end of the stirrer 8 in a sliding manner; one side of the baffle 10 penetrates through the inner wall of the discharge hole of the stirrer 8 and is fixedly connected with the output end of the electric push rod 7; the section of the discharge hole of the stirrer 8 is rectangular, the baffle 10 is rectangular, and the baffle 10 can intercept the raw materials in the stirrer 8, so that the raw materials can be prevented from flowing into the feeding cylinder 30 under the condition that the raw materials are not fully mixed, and the quality of the cable is reduced.

In a further preferred embodiment, the heater 11 is fixedly mounted on the peripheral wall of the feeding cylinder 30, and the raw material entering the feeding cylinder 30 can be heated to be in a molten state.

In a further optimization scheme, a guide plate 14 is fixedly arranged at a position right above the discharge pipe 22 in the feeding barrel 30; the guide plate 14 is obliquely arranged, so that the raw material in the feeding cylinder 30 can be guided into the discharge pipe 22, and the pressure of the raw material in the feeding cylinder 30 on the end face of the feeding cylinder 30 is reduced; meanwhile, the raw materials can be prevented from being accumulated at corners for a long time.

In a further optimized scheme, the top surface of the stirrer 8 is provided with a feeding port 9, so that feeding operation can be performed.

In a further optimization scheme, the upper shaping wheel 18 and the lower shaping wheel 19 are the same in shape and size; the upper gear 23 and the lower gear 24 have the same shape and size, so that the linear speed of the upper sizing wheel 18 and the linear speed of the lower sizing wheel 19 can be ensured to be the same, and the cable can stably move between the upper sizing wheel 18 and the lower sizing wheel 19.

When the utility model is used, necessary raw materials are firstly poured into the stirrer 8 from the feed inlet 9 to be fully stirred; at the moment, the baffle 10 blocks the discharge hole of the stirrer 8 and does not flow out, after the stirring is finished, the feeding motor 4 is started, and the feeding motor 4 drives the second gear 29 to rotate; the second gear 29 drives the first gear 28 to rotate, the first gear 28 drives the main rotating shaft 13 to rotate, the main rotating shaft 13 drives the spiral plate 12 to rotate, then the electric push rod 7 is controlled to contract, the discharge hole of the stirrer 8 is opened, the mixed raw materials flow into the feeding cylinder 30, the raw materials slowly move under the drive of the spiral plate 12, and meanwhile, the heater 11 is electrified so as to melt the raw materials; insert the cable from the one end that the discharging pipe 22 was kept away from to wire pipe 3 and stretch out from the other end, wait that the fused raw materials is extruded and the parcel is back on the cable from the discharging pipe, slowly stimulate the cable and pass between from last forming wheel 18 and lower forming wheel 19, at last forming wheel 18 under with the extrusion of forming wheel 19, the raw materials colloid of parcel on the cable can be extruded into circular cross section's parcel layer, open water pump 20 afterwards and to the parcel layer water spray cooling after being extruded, the parcel layer cools off the design in the twinkling of an eye, the cable after slowly will wrapping up the completion continues to collect afterwards.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (10)

1. An extruder for cable production, comprising: the plastic extruding machine comprises a base (1), a plastic extruding machine main body and a shaping cooling mechanism; the main body of the extruding machine is fixedly arranged on the top surface of the base (1) through a plurality of supporting plates (2); a discharge hole of the main body of the plastic extruding machine is formed in the bottom and communicated with a discharge pipe (22); the discharge hole of the discharge pipe (22) is horizontally arranged; the shaping and cooling mechanism is fixedly arranged at one end, close to the discharge hole of the discharge pipe (22), of the top surface of the base (1);

the shaping and cooling mechanism comprises a fixing plate (15), a shaping assembly and a cooling assembly; the shaping assembly and the cooling assembly are both fixedly arranged on the fixing plate (15); the fixing plate (15) is vertically welded on the top surface of the base (1) and is parallel to the discharge hole of the discharge pipe (22); the sizing assembly comprises a driving motor (25), an upper rotating shaft (26) and a lower rotating shaft (27) which are rotatably arranged on the fixing plate (15); the upper rotating shaft (26) and the lower rotating shaft (27) are perpendicular to the fixing plate (15) and are positioned in the same vertical plane; the upper rotating shaft (26) and the lower rotating shaft (27) penetrate through the fixing plate (15) and are close to one end of the discharge pipe (22), and an upper sizing wheel (18) and a lower sizing wheel (19) are fixedly mounted at one end respectively; go up forming wheel (18) and lower forming wheel (19) with driving motor (25) transmission is connected.

2. An extruder as claimed in claim 1, wherein: the peripheral walls of the upper shaping wheel (18) and the lower shaping wheel (19) are provided with annular grooves with the same size; the cross section of the ring groove is semicircular; the circular cross section formed by the combination of the upper shaping wheel (18) and the ring grooves formed in the peripheral wall of the lower shaping wheel (19) is just opposite to the discharge pipe (22).

3. An extruder as claimed in claim 1, wherein: an upper gear (23) and a lower gear (24) are respectively and fixedly mounted at one ends of the upper rotating shaft (26) and the lower rotating shaft (27) far away from the discharge pipe (22); the upper shaping wheel (18) is abutted with the lower shaping wheel (19); the upper gear (23) and the lower gear (24) are meshed; the lower gear (24) is in transmission connection with the driving motor (25).

4. An extruder as claimed in claim 3, wherein: the cooling assembly comprises a water pipe (17); one end of the water pipe (17) is fixedly arranged at the top end of the fixing plate (15) and horizontally extends to the upper part of the axis of the discharge pipe (22); the bottom of the water pipe is provided with a spray head (16); the nozzle of the spray head (16) faces downwards and is opposite to the axis of the discharge pipe (22); a water pool (21) is arranged on the top surface of the base (1) and is positioned right below the water pipe (17); a water pump (20) is fixedly arranged in the water pool (21); the other end of the water pipe (17) extends downwards into the water pool (21) and is communicated with the water pump (20).

5. An extruder as claimed in claim 3, wherein: the extruder body comprises a feeding motor (4) and a feeding barrel (30) which is horizontally arranged; the top of one end of the feeding cylinder (30) is communicated with a stirrer (8); a main rotating shaft (13) is coaxially arranged in the feeding cylinder (30); the main rotating shaft (13) is rotatably connected with two ends of the feeding cylinder (30); one end of the main rotating shaft (13) close to the stirrer (8) penetrates through the end face of the feeding cylinder (30) and is in transmission connection with the feeding motor (4); the peripheral wall of the main rotating shaft (13) is welded with a spiral plate (12) along the length direction; a wiring pipe (3) is horizontally arranged below the feeding cylinder (30); the wiring pipe (3) and a discharge hole of the discharge pipe (22) are arranged coaxially; one end of the wiring pipe (3) penetrates through the discharge pipe (22) and extends outwards to be flush with the discharge port end face of the discharge pipe (22); the other end of the wiring pipe (3) penetrates through the supporting plate (2) and extends to the outside of the base (1).

6. An extruder as claimed in claim 5, wherein: a cooling and heat-insulating mechanism is also arranged between the feeding motor (4) and the main rotating shaft (13); the cooling and heat insulation mechanism comprises a gearbox (6); a first partition plate (34) and a second partition plate (35) are fixedly arranged in the gearbox (6); the first partition plate (34) and the second partition plate (35) divide the interior of the gearbox (6) into a first water cavity (31), a gear cavity (32) and a second water cavity (33); the first water cavity (31) and the second water cavity (33) are respectively positioned at two sides of the gear cavity (32); the main rotating shaft (13) penetrates through the first water cavity (31) and extends into the gear cavity (32); a first gear (28) is fixedly arranged on the part of the main rotating shaft (13) positioned in the gear cavity (32); an output shaft (5) of the feeding motor (4) penetrates through the second water cavity (33) and extends into the gear cavity (32), and a second gear (29) is fixedly mounted on the part, located in the gear cavity (32), of the output shaft (5); the first gear (28) and the second gear (29) are meshed.

7. An extruder as claimed in claim 5, wherein: an opening and closing mechanism is arranged between the stirrer (8) and the feeding cylinder (30); the opening and closing mechanism comprises a baffle (10) and an electric push rod (7); the baffle (10) is horizontally arranged in a discharge port at the bottom end of the stirrer (8) in a sliding manner; one side of the baffle (10) penetrates through the inner wall of the discharge hole of the stirrer (8) and is fixedly connected with the output end of the electric push rod (7).

8. An extruder as claimed in claim 7, wherein: a heater (11) is fixedly arranged on the peripheral wall of the feeding cylinder (30); and a feed inlet (9) is formed in the top surface of the stirrer (8).

9. An extruder as claimed in claim 5, wherein: a guide plate (14) is fixedly arranged at a position right above the discharge pipe (22) in the feeding barrel (30).

10. An extruder as claimed in claim 3, wherein: the upper shaping wheel (18) and the lower shaping wheel (19) are the same in shape and size; the upper gear (23) and the lower gear (24) are the same in shape and size.

Images