CN216804347U - Feeding device of plastic extruding machine - Google Patents

Abstract

The application relates to a feeding device of a plastic extruding machine, which relates to the field of plastic extruding machines and comprises a hopper, wherein a partition plate is arranged in the hopper, and a discharge hole is formed in the partition plate; a rotating power part is fixedly arranged above the hopper, an output shaft of the rotating power part extends into the hopper, and a rotating shaft is coaxially and fixedly connected to an output shaft of the rotating power part; the baffle plate is vertical to the central shaft of the hopper, the axis of the rotating shaft is superposed with the central shaft of the hopper, the rotating shaft is fixedly connected with a scraper, the lower edge of the scraper is attached to the top of the baffle plate, and the side edge of the scraper is attached to the inner wall of the hopper; the bottom of baffle corresponds the position department intercommunication of discharge gate and has a ejection of compact mouth, and sliding connection has the apron that carries out the cover to the ejection of compact mouth on the ejection of compact mouth, is provided with in the pivot to turn into linear motion with the pivot rotary motion and carries out the drive assembly that intermittent type nature covered with the drive apron to the ejection of compact mouth, and this application has the effect that improves the smooth and easy nature of extruding machine feeding.

Description

Feeding device of plastic extruding machine

Technical Field

The application relates to the field of extruding machines, in particular to a feeding device of an extruding machine.

Background

An extruder is a machine used to produce plastic, and most of the production and manufacture of plastic products can be achieved by means of an extruder.

The feeding of the extruder is mostly made of granules, the feeding device is usually made of a conical feeding hopper, the feeding hopper is vertically arranged on the extruder, the upper part and the lower part are open, the granules are added from the upper part, and the lower part is communicated with the extruder.

In view of the above-mentioned related art, the inventors found that the following drawbacks exist: during the production process of the extruder, the amount of the granules contained in the hopper is generally 1-1.5 hours of the amount of the granules contained in the extruder, and the granules gradually enter the extruder from the lower part of the hopper under the action of gravity; however, since the amount of the granules is large, the granules below the extruder are compacted, which sometimes causes the outlet at the bottom of the hopper to be blocked, so that the granules cannot smoothly enter the extruder, thereby affecting the processing quality.

SUMMERY OF THE UTILITY MODEL

In order to improve the smoothness of feeding of an extruder, the application provides a feeding device of the extruder.

The application provides an extruding machine feed arrangement adopts following technical scheme:

a feeding device of a plastic extruding machine comprises a hopper, wherein the hopper comprises a hopper main body and a guide cylinder, the upper part and the lower part of the hopper main body are arranged in an opening shape, the side wall of the guide cylinder is obliquely arranged, the large end of the guide cylinder is fixedly connected to the bottom of the hopper main body, the small end of the guide cylinder faces a feeding hole of the plastic extruding machine, a partition plate is arranged in the hopper main body and divides an inner cavity of the hopper main body into an upper material containing chamber and a lower material discharging chamber, and a discharging hole is formed in the partition plate; a rotating power part is fixedly arranged above the hopper, an output shaft of the rotating power part extends into the hopper, and a rotating shaft is coaxially and fixedly connected to an output shaft of the rotating power part; the baffle plate is vertical to the central shaft of the hopper main body, the axis of the rotating shaft is superposed with the central shaft of the hopper main body, the rotating shaft is fixedly connected with a scraper, the lower edge of the scraper is attached to the top of the baffle plate, and the side edge of the scraper is attached to the inner wall of the material containing chamber; the bottom of baffle corresponds the position department intercommunication of discharge gate and has a ejection of compact mouth, sliding connection has the apron that carries out the coverage to the ejection of compact mouth on the ejection of compact mouth, be provided with in the pivot and turn into linear motion with pivot rotary motion and carry out the drive assembly that intermittent type nature covered with the drive apron to the ejection of compact mouth.

By adopting the technical scheme, when feeding the plastic extruding machine, a worker firstly starts the rotary power part, the scraper plate rotates along with the rotary shaft in the material containing chamber, and the cover plate intermittently covers the discharge port; after the granule material was sent into flourishing material room, the scraper blade stirred the granule material in flourishing material room, promoted the granule material to get into the discharge gate, and the granule material has reduced the speed that the granule material got into the discharge chamber through the intermittent type nature entering discharge chamber of ejection of compact mouth, and the granule material that gets into the discharge chamber in time gets into the extruding machine, and the granule material is less in piling up of discharge chamber, has reduced the jam of granule material in a feed cylinder department, has improved the smoothness nature of extruding machine feeding.

Optionally, the driving assembly comprises a driving wheel and a push-pull rod; the driving wheel is vertically and fixedly connected to the rotating shaft, and a curve groove surrounding the rotating center of the driving wheel is formed in the driving wheel; the curve recess slides and is provided with and supports the push rod, it is parallel with the axis of hopper main part to support the push rod axis, the one end fixed connection of push-and-pull rod is on the apron, and the other end sets up support on the push rod, when the drive wheel rotated along with the pivot, support the push rod to being close to or keeping away from the direction reciprocating motion of pivot.

By adopting the technical scheme, after a worker starts the rotary power piece, the rotary power piece drives the rotating shaft to rotate so as to drive the driving wheel to rotate, and when the driving wheel rotates, the push rod is pushed to reciprocate towards the direction close to or far away from the rotating shaft so as to drive the push-pull rod to push and pull the cover plate in a reciprocating manner, so that the discharge port is opened and closed circularly; the whole structure is simple, and the movement is flexible.

Optionally, a plurality of curve grooves which are sequentially sleeved are radially arranged on the driving wheel at intervals, and the rotation centers of the curve grooves are the same; the length of the push-pull rod is adjustable, and the push-pull rod can be detachably clamped in different curved grooves to be connected with the driving wheel in a sliding mode.

By adopting the technical scheme, when a worker clamps the abutting push rod in the curve groove which is closer to the axle center of the driving wheel, the eccentric range of a point on the curve groove is smaller, the opening and closing range of the discharge port is smaller, and the flow of the granular materials entering the discharge chamber from the material containing chamber is smaller; when the pushing rod is clamped in the curve groove far away from the axle center of the driving wheel, the opening and closing range of the discharge port is large, and the flow of the granular materials entering the discharge chamber from the material containing chamber is large; through will support the push rod joint in different curve recesses for extruding machine feed arrangement can adapt to the workshop to the needs of the different flow of aggregate.

Optionally, the push-pull rod includes a main rod and an auxiliary rod, one end of the main rod is fixedly connected to the cover plate, the other end of the main rod faces the rotating shaft, a long hole is formed in the main rod, and the length direction of the long hole is along the length direction of the main rod; the auxiliary rod is detachably connected to the main rod, a threaded hole is formed in one end, close to the main rod, of the auxiliary rod, a bolt is connected to the threaded hole in a threaded mode, the free end of the bolt penetrates through the long hole, and the head of the bolt abuts against the main rod to fix the relative position of the main rod and the auxiliary rod; one end of the auxiliary rod close to the driving wheel is connected with the pushing rod.

Through adopting above-mentioned technical scheme, when the staff need will support the push rod and follow another curve recess joint, unscrew the bolt, will support the push rod and break away from in original curve recess, then the pulling is vice pole, will support the push rod and put into new curve recess, screws up the bolt again, convenient operation is swift.

Optionally, one end of the push-pull rod close to the driving wheel is rotatably connected with the abutting-push rod.

Through adopting above-mentioned technical scheme, support the sliding friction between push rod and the curved groove and become rolling friction, reduced the wearing and tearing that support the push rod.

Optionally, a maintenance opening is formed in the side wall of the hopper main body, the maintenance opening is communicated with the discharge chamber, a maintenance door covering the discharge port is arranged on the side wall of the hopper, and the maintenance door is made of transparent materials.

Through adopting above-mentioned technical scheme, the staff of being convenient for observes the condition in the discharging chamber.

Optionally, sliding through holes are formed in two opposite sides of the maintenance door, threaded holes are formed in the positions, corresponding to the sliding through holes, of the hopper body, bolts are connected with the threaded holes in an internal thread mode, free ends of the bolts penetrate through the sliding through holes, and the heads of the bolts are abutted against the maintenance door to fix the maintenance door on the hopper body.

Through adopting above-mentioned technical scheme, when the staff observed that there was the jam in the discharging chamber or drive assembly had the anomaly, unscrewed the bolt, the maintenance door can slide under the guide effect of bolt this moment, and the staff promotes the maintenance door along the length direction in rectangular hole and can spill the maintenance mouth, makes things convenient for the staff to handle the unusual condition in the discharging chamber.

Optionally, the bottom of the discharge chamber is communicated with a discharge barrel, the bottom of the rotating shaft is coaxially and fixedly connected with an auger, and the auger is positioned in the discharge barrel.

By adopting the technical scheme, after the granules enter the discharge barrel, the granules move to the discharge hole of the hopper along with the pushing of the spiral blade of the packing auger, and more uniformly enter the plastic extruding machine.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving assembly drives the cover plate to intermittently cover the discharge port, and after the granules are conveyed to the material containing chamber, the granules intermittently enter the discharge chamber from the discharge port, so that the granules are less accumulated at the discharge port, the congestion of the granules at the discharge port is reduced, and the feeding smoothness of the extruding machine is improved;

2. the feeding device of the extruding machine can meet the requirements of production workshops on different flow rates of granules by arranging a plurality of curve grooves with different profiles on the driving wheel and matching with the push-pull rod with adjustable length;

3. the auger is arranged at the bottom of the rotating shaft, so that the aggregate can more uniformly enter the discharging chamber.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram of a drive assembly in embodiment 1 of the present application;

FIG. 3 is a schematic view showing the shape of a curved groove in example 1 of the present application;

FIG. 4 is a schematic view showing the connection of a service door in embodiment 1 of the present application;

fig. 5 is a schematic structural diagram of a driving assembly in embodiment 2 of the present application.

Reference numerals are as follows: 1. a hopper; 11. a hopper body; 111. a maintenance port; 112. repairing the door; 1121. a slide through hole; 1122. a bolt; 12. a guide cylinder; 13. a discharging barrel; 2. a partition plate; 21. a discharge port; 22. a discharging nozzle; 23. a cover plate; 231. a chute; 3. a rotary power member; 4. a rotating shaft; 41. a squeegee; 42. a drive assembly; 421. a drive wheel; 4211. a curved groove; 4212. pushing the push rod; 422. a push-pull rod; 4221. a bearing; 4222. a main rod; 42221. a strip hole; 4223. an auxiliary rod; 43. a packing auger; 5. a fixing plate; 51. and (4) feeding a material inlet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses extruding machine feed arrangement.

Example 1:

referring to fig. 1, the feeding device of the extruder comprises a hopper 1, a partition plate 2, a rotary power member 3 and a rotating shaft 4; the hopper 1 is vertically arranged, the partition plate 2 is fixedly connected in the hopper 1 along the horizontal direction, the inner cavity of the hopper 1 is divided into an upper material containing chamber and a lower material discharging chamber, and the partition plate 2 is provided with a material outlet 21 so as to communicate the material containing chamber with the material discharging chamber; the rotary power part 3 is fixedly arranged above the hopper 1, an output shaft extends into the hopper 1, the output shaft of the rotary power part 3 is superposed with the central axis of the hopper 1, the rotating shaft 4 is coaxially and fixedly connected to the output shaft of the rotary power part 3, the rotating shaft 4 is fixedly connected with a scraper 41, the lower edge of the scraper 41 is attached to the top of the partition plate 2, and the side edge of the scraper is attached to the inner wall of the material containing chamber; the bottom of the partition board 2 is communicated with the discharge port 21, the discharge port 22 is connected to the position corresponding to the discharge port 21, the discharge port 22 is connected with the cover plate 23 for covering the discharge port 22 in a sliding manner, and the rotating shaft 4 is provided with a driving assembly 42 for converting the rotating motion of the rotating shaft 4 into the linear motion so as to drive the cover plate 23 to cover the discharge port 22 intermittently.

The hopper 1 comprises a hopper main body 11, a guide cylinder 12 and a discharge cylinder 13; the hopper body 11 is cylindrical, the guide cylinder 12 is conical, the small end is positioned below the large end, and the large end is fixedly connected to the bottom of the hopper body 11; the discharging barrel 13 is cylindrical and is fixedly connected to the small end of the guide barrel 12.

With reference to fig. 1 and 2, a maintenance opening 111 is formed in a side wall of the hopper body 11, the maintenance opening 111 is communicated with the discharge chamber, a maintenance door 112 capable of covering the maintenance opening 111 is installed on the side wall of the hopper body 11, and the maintenance door 112 is made of a transparent material, so that a worker can observe the situation in the discharge chamber conveniently.

The maintenance opening 111 and the maintenance door 112 are rectangular, two threaded holes are formed in the side wall of the hopper main body 11 at intervals, and the two threaded holes are respectively located on the left side and the right side of the maintenance opening 111; a vertical sliding through hole 1121 is formed in the position, corresponding to the threaded hole, of the maintenance door 112, a bolt 1122 is connected to the threaded hole in a threaded manner, and the bolt 1122 is located in the sliding through hole 1121 so as to tightly fix the maintenance door 112 to the hopper body 11; when the staff observes that there is the jam in the discharging chamber or drive assembly 42 has unusually, unscrew bolt 1122, maintenance door 112 can slide under bolt 1122's guiding effect this moment, and the staff promotes maintenance door 112 along the length direction of rectangular hole 42221 and can spill maintenance mouth 111, makes things convenient for the staff to handle the unusual condition in the discharging chamber.

Referring to fig. 1, a fixing plate 5 for fixing the rotary power member 3 is fixedly connected to the top of the hopper body 11, and the fixing plate 5 covers the opening of the hopper body 11 in consideration of impurities in a workshop; the fixed plate 5 is circular, and in order to facilitate feeding, a feeding hole 51 for feeding is formed in the fixed plate 5.

The rotary power part 3 can be a motor or a rotary hydraulic cylinder, and a hydraulic station is required to be separately equipped when the rotary hydraulic cylinder is used in a workshop, so that the motor is recommended to be adopted in the embodiment of the application.

Referring to fig. 3, the cover plate 23 is rectangular, the discharging nozzle 22 is rectangular and cylindrical, and two opposite sides of the lower portion of the discharging nozzle 22 are turned over towards the outer side of the discharging nozzle 22 to form flanges; the two sides of the cover plate 23 corresponding to the flanges are bent inwards to form sliding grooves 231, and the cover plate 23 is connected with the discharging nozzle 22 in a sliding manner through the matching of the sliding grooves 231 and the flanges.

Referring to fig. 3, the driving assembly 42 includes a driving wheel 421 and a push-pull rod 422; the driving wheel 421 is fixedly connected to the rotating shaft 4 along the horizontal direction, a curved groove 4211 surrounding the rotation center of the driving wheel 421 is formed on the driving wheel 421, a vertical pushing rod 4212 is slidably arranged in the curved groove 4211, one end of the pushing rod 422 is fixedly connected to the cover plate 23, and the other end of the pushing rod 422 is arranged on the pushing rod 4212; when the driving wheel 421 rotates along with the rotating shaft 4, the pushing rod 4212 is driven to reciprocate in a direction approaching or separating from the rotating shaft 4, and the cover plate 23 slides back and forth under the pushing and pulling action of the pushing and pulling rod 422.

In order to reduce the abrasion of the pushing rod 4212 in the curved groove 4211, a bearing 4221 is installed at one end of the pushing rod 422 close to the driving wheel 421, the outer ring of the bearing 4221 is in interference fit with the pushing rod 422, the inner ring is coaxially and fixedly connected with the pushing rod 4212, and in the process that the pushing rod 4212 moves in the groove, the sliding friction between the pushing rod 4212 and the curved groove 4211 is changed into rolling friction.

Referring to fig. 4, a fitted curve of the profile of the curved groove 4211 is composed of four segments AB, BC, CD and DA; the AB section is an arc with the axis of the driving wheel 421 as the center of circle; the distance from the point on the curve of the segment BC to the axle center of the driving wheel 421 is gradually increased, and the distance from the point C to the axle center of the driving wheel 421 is the largest; the CD segment is an arc with the axis of the driving wheel 421 as the center of the circle; the distance from the point on the DA section to the axial center of the driving wheel 421 gradually decreases, and the distance from the point a to the axial center of the driving wheel 421 is the smallest.

When the pushing rod 4212 is located at point a, the contact point of the pushing rod 4212 and the curved groove 4211 is closest to the rotation center of the driving wheel 421, at this time, the cover plate 23 is pulled to the limit position, and the opening of the discharging nozzle 22 is the largest; when the driving wheel 421 rotates in the counterclockwise direction and the push-pull rod 422 is located at the section AB, the push-pull rod 422 is stationary, and the material containing chamber can supply material to the material discharging chamber; when the driving wheel 421 continues to rotate and the push-pull rod 422 is located at segment BC, the push-pull rod 4212 is pushed, and the push-pull rod 422 pushes the cover plate 23 to gradually close the discharging nozzle 22, until the discharging nozzle 22 is completely closed when the push-pull rod 422 is located at point C; the driving wheel 421 continues to rotate, and when the push-pull rod 422 is located at the CD segment, the push-pull rod 4212 is still, and at this time, the material containing chamber cannot supply material to the material discharging chamber; the driving wheel 421 continues to rotate, and when the pushing rod 4212 is located at the DA section, the pushing rod 4212 is pulled, at this time, the cover of the cover plate 23 on the discharging nozzle 22 is gradually reduced, and the material containing chamber starts to supply materials to the discharging chamber.

The curved groove 4211 on the driving wheel 421 enables the driving wheel 421 to rotate for a circle through the distribution of four curves, the cover plate 23 can complete a reciprocating motion, and the discharging nozzle 22 is opened and closed once; when the curve of the curve groove 4211 is designed, the proportion of the opening time and the closing time of the discharging nozzle 22 in the one-time opening and closing process of the discharging nozzle 22 can be adjusted by adjusting the central angles corresponding to the arcs of the AB section and the CD section, so that the flow rate of the granules entering the discharging chamber from the material containing chamber is controlled; in actual production, each extruder feeding device can be provided with a plurality of driving wheels 421 with different curved grooves 4211, and the production workshop is provided with the proper driving wheels 421 according to the requirement of the pellet flow.

Referring to fig. 1, a packing auger 43 is coaxially and fixedly connected to the lower end of the rotating shaft 4, the packing auger 43 is vertically arranged in the discharge barrel 13, and a helical blade of the packing auger 43 is inclined downwards to be helical; after the granules fall into the discharge chamber from the containing chamber, the granules are gathered in the discharge barrel 13 through the guide barrel 12, and the granules move downwards along with the pushing of the helical blades and enter the plastic extruding machine more uniformly.

The implementation principle of the embodiment 1 of the application is as follows: when feeding the plastic extruding machine, a worker firstly starts the rotary power part 3, the scraper 41 rotates along with the rotating shaft 4 in the material containing chamber, and the cover plate 23 intermittently covers the discharge nozzle 22; after the granular materials enter the material containing chamber through the material inlet 51, the scraper 41 stirs the granular materials in the material containing chamber to promote the granular materials to enter the material outlet 21, the granular materials intermittently enter the material outlet chamber from the material outlet nozzle 22, the speed of the granular materials entering the material outlet chamber is reduced, the granular materials entering the material outlet chamber are timely sent to the plastic extruding machine by the auger 43, less accumulation is caused in the material outlet chamber, the congestion of the granular materials at the material outlet barrel 13 is reduced, and the smoothness of the granular materials entering the plastic extruding machine is improved; in the using process, when the worker finds that the abnormal condition exists in the discharging chamber from the maintenance door 112, the worker unscrews the bolt 1122, slides the maintenance door 112 open, and handles the abnormal condition in the discharging chamber.

Example 2:

referring to fig. 5, the present embodiment is different from embodiment 1 in that a plurality of curved grooves 4211 are sequentially disposed on the driving wheel 421 at intervals in the radial direction, and the rotation centers of the curved grooves 4211 are the same; the length of the push-pull rod 422 can be adjusted, and the push-pull rod 4212 can be detachably clamped in different curved grooves 4211 to be connected with the driving wheel 421 in a sliding manner.

The push-pull rod 422 includes a main rod 4222 and an auxiliary rod 4223; the main rod 4222 is fixedly connected to the cover plate 23, a long hole 42221 is formed in the main rod 4222, and the length direction of the long hole is along the length direction of the main rod 4222; the auxiliary rod 4223 is positioned at the top of the main rod 4222, a threaded hole is vertically formed in the position, corresponding to the elongated hole 42221, of the auxiliary rod 4223, a bolt 1122 is connected with the threaded hole in a threaded mode, the free end of the bolt 1122 penetrates through the elongated hole 42221, the head of the bolt 1122 abuts against the main rod 4222, and the auxiliary rod 4223 is tightly pressed and fixed on the main rod 4222.

One end of the auxiliary rod 4223 close to the driving wheel 421 is provided with a bearing 4221, an outer ring of the bearing 4221 is in interference fit with the auxiliary rod 4223, and an inner ring is coaxially and fixedly connected with the push rod 4212.

In actual use, for the convenience of adjusting the relative position of the primary rod 4222 and the secondary rod 4223 by a worker, a butterfly bolt 1122 can be used as the bolt 1122.

The implementation principle of embodiment 2 of the present application is as follows: when the flow of the aggregate needs to be adjusted by a worker, the rotary power piece 3 is closed, the maintenance door 112 is opened, the bolt 1122 is loosened, when the flow needs to be small, the pushing rod 4212 is separated from the original curve groove 4211, the auxiliary rod 4223 is pulled, the pushing rod 4212 is placed into the curve groove 4211 which is close to the axis of the driving wheel 421, the distance between the point on the curve groove 4211 and the axis of the driving wheel 421 is small, the sliding range of the cover plate 23 is small, and the opening at the discharging nozzle 22 is small; when a large flow is needed, the pushing rod 4212 is placed into the curve groove 4211 far away from the axis of the driving wheel 421, the distance between the point on the curve groove 4211 and the axis of the driving wheel 421 is large, the sliding range of the cover plate 23 is large, and the opening at the discharging nozzle 22 is large; after the adjustment is finished, the bolt 1122 is screwed, the maintenance door 112 is closed, the rotary power part 3 is restarted, the condition in the discharge chamber is observed through the maintenance door 112, and if the ideal effect is not achieved, the maintenance door 112 is opened for adaptive adjustment; so that the feeding device of the extruding machine can adapt to the requirements of production workshops for different flow rates of the granules.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an extruding machine feed arrangement, includes hopper (1), hopper (1) includes hopper main part (11) and guide cylinder (12), hopper main part (11) are the opening form setting from top to bottom, guide cylinder (12) lateral wall slope sets up, the big end fixed connection of guide cylinder (12) is in the bottom of hopper main part (11), and the tip is towards feed inlet (51) of extruding machine, its characterized in that: a partition plate (2) is arranged in the hopper main body (11) to divide the inner cavity of the hopper main body (11) into an upper material containing chamber and a lower material discharging chamber, and a material outlet (21) is formed in the partition plate (2);

a rotating power part (3) is fixedly arranged above the hopper (1), an output shaft of the rotating power part (3) extends into the hopper (1), and a rotating shaft (4) is coaxially and fixedly connected to the output shaft of the rotating power part (3);

the partition plate (2) is vertical to the central shaft of the hopper body (11), the axis of the rotating shaft (4) is superposed with the central shaft of the hopper body (11), the rotating shaft (4) is fixedly connected with a scraper (41), the lower edge of the scraper (41) is attached to the top of the partition plate (2), and the side edge of the scraper is attached to the inner wall of the material containing chamber;

the position department intercommunication that the bottom of baffle (2) corresponds discharge gate (21) has ejection of compact mouth (22), sliding connection has apron (23) that cover ejection of compact mouth (22) on ejection of compact mouth (22), be provided with on pivot (4) and turn into linear motion with pivot (4) rotary motion and carry out drive assembly (42) that intermittent type nature covered to ejection of compact mouth (22) with drive apron (23).

2. The extruder feed apparatus of claim 1, characterized in that: the driving assembly (42) comprises a driving wheel (421) and a push-pull rod (422);

the driving wheel (421) is vertically and fixedly connected to the rotating shaft (4), and a curved groove (4211) surrounding the rotating center of the driving wheel (421) is formed in the driving wheel (421);

the push-pull hopper is characterized in that a push-pull rod (4212) is arranged in the curve groove (4211) in a sliding mode, the axis of the push-pull rod (4212) is parallel to the central axis of the hopper body (11), one end of the push-pull rod (422) is fixedly connected to the cover plate (23), the other end of the push-pull rod is arranged on the push-pull rod (4212), and when the driving wheel (421) rotates along with the rotating shaft (4), the push-pull rod (4212) moves back and forth in the direction close to or far away from the rotating shaft (4).

3. Extruder feeding apparatus as claimed in claim 2, characterised in that: a plurality of curve grooves (4211) which are sequentially sleeved are formed in the driving wheel (421) at intervals along the radial direction, and the rotation centers of the curve grooves (4211) are the same;

the length of the push-pull rod (422) is adjustable, and the push-pull rod (4212) is detachably clamped in different curve grooves (4211) and is in sliding connection with the driving wheel (421).

4. Extruder feed apparatus according to claim 3, characterized in that: the push-pull rod (422) comprises a main rod (4222) and an auxiliary rod (4223), one end of the main rod (4222) is fixedly connected to the cover plate (23), the other end of the main rod faces the rotating shaft (4), a long hole (42221) is formed in the main rod (4222), and the length direction of the long hole (42221) is along the length direction of the main rod (4222);

the auxiliary rod (4223) is detachably connected to the main rod (4222), a threaded hole is formed in one end, close to the main rod (4222), of the auxiliary rod (4223), a bolt (1122) is connected to the threaded hole in a threaded mode, the free end of the bolt (1122) penetrates through the long hole (42221), the head of the bolt (1122) abuts against the main rod (4222) to fix the relative position of the main rod (4222) and the auxiliary rod (4223);

one end of the auxiliary rod (4223) close to the driving wheel (421) is connected with the push rod (4212).

5. The extruder feed assembly of claim 4, characterized by: one end of the push-pull rod (422) close to the driving wheel (421) is rotatably connected with the push resisting rod (4212).

6. The extruder feed apparatus of claim 1, characterized in that: maintenance mouth (111) have been seted up to the lateral wall of hopper main part (11), maintenance mouth (111) and discharge chamber intercommunication, be provided with maintenance door (112) that cover discharge gate (21) on the lateral wall of hopper (1), maintenance door (112) are made by transparent material.

7. The extruder feed assembly of claim 6, characterized in that: the hopper is characterized in that sliding through holes (1121) are formed in two opposite sides of the maintenance door (112), threaded holes are formed in positions, corresponding to the sliding through holes (1121), of the hopper body (11), bolts (1122) are connected with the threaded holes in an internal thread mode, the free ends of the bolts (1122) penetrate through the sliding through holes (1121), and the heads of the bolts (1122) abut against the maintenance door (112) to fix the maintenance door (112) on the hopper body (11).

8. Extruder feeding apparatus as claimed in claim 2, characterised in that: go out the feed chamber bottom intercommunication and have a feed cylinder (13), the coaxial rigid coupling in bottom of pivot (4) has auger (43), auger (43) are located a feed cylinder (13).

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